Home / 770,132.54-1,062,457.46-515,565.74

Finding the Fourth Proportional to 770,132.54, 1,062,457.46 and 515,565.74

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Solution

The fourth proportional to 770,132.54, 1,062,457.46 and 515,565.74 is: 711,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,132.54 : 1,062,457.46 = 515,565.74 : x
  2. Step 2: Convert to fraction form
    770,132.54/1,062,457.46 = 515,565.74/x
  3. Step 3: Cross multiply
    770,132.54x = 1,062,457.46 × 515,565.74
  4. Step 4: Simplify right side
    770,132.54x = 547,766,666,583.42
  5. Step 5: Solve for x
    x = 547,766,666,583.42/770,132.54
  6. Step 6: Final answer
    x = 711,262.85

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.