Home / 628,279.20-942,418.80-586,807.20

Finding the Fourth Proportional to 628,279.20, 942,418.80 and 586,807.20

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Solution

The fourth proportional to 628,279.20, 942,418.80 and 586,807.20 is: 880,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,279.20 : 942,418.80 = 586,807.20 : x
  2. Step 2: Convert to fraction form
    628,279.20/942,418.80 = 586,807.20/x
  3. Step 3: Cross multiply
    628,279.20x = 942,418.80 × 586,807.20
  4. Step 4: Simplify right side
    628,279.20x = 553,018,137,255.36
  5. Step 5: Solve for x
    x = 553,018,137,255.36/628,279.20
  6. Step 6: Final answer
    x = 880,210.80

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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.