Home / 722,144.76-1,083,419.55-290,165.55

Finding the Fourth Proportional to 722,144.76, 1,083,419.55 and 290,165.55

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Solution

The fourth proportional to 722,144.76, 1,083,419.55 and 290,165.55 is: 435,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,144.76 : 1,083,419.55 = 290,165.55 : x
  2. Step 2: Convert to fraction form
    722,144.76/1,083,419.55 = 290,165.55/x
  3. Step 3: Cross multiply
    722,144.76x = 1,083,419.55 × 290,165.55
  4. Step 4: Simplify right side
    722,144.76x = 314,371,029,606.50
  5. Step 5: Solve for x
    x = 314,371,029,606.50/722,144.76
  6. Step 6: Final answer
    x = 435,329.66

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Double scale
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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.