Home / 782,483.54-1,174,161.41-422,647.13

Finding the Fourth Proportional to 782,483.54, 1,174,161.41 and 422,647.13

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Solution

The fourth proportional to 782,483.54, 1,174,161.41 and 422,647.13 is: 634,206.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,483.54 : 1,174,161.41 = 422,647.13 : x
  2. Step 2: Convert to fraction form
    782,483.54/1,174,161.41 = 422,647.13/x
  3. Step 3: Cross multiply
    782,483.54x = 1,174,161.41 × 422,647.13
  4. Step 4: Simplify right side
    782,483.54x = 496,255,945,279.06
  5. Step 5: Solve for x
    x = 496,255,945,279.06/782,483.54
  6. Step 6: Final answer
    x = 634,206.25

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.