Home / 770,132.12-1,062,456.89-515,565.32

Finding the Fourth Proportional to 770,132.12, 1,062,456.89 and 515,565.32

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Solution

The fourth proportional to 770,132.12, 1,062,456.89 and 515,565.32 is: 711,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,132.12 : 1,062,456.89 = 515,565.32 : x
  2. Step 2: Convert to fraction form
    770,132.12/1,062,456.89 = 515,565.32/x
  3. Step 3: Cross multiply
    770,132.12x = 1,062,456.89 × 515,565.32
  4. Step 4: Simplify right side
    770,132.12x = 547,765,918,588.94
  5. Step 5: Solve for x
    x = 547,765,918,588.94/770,132.12
  6. Step 6: Final answer
    x = 711,262.27

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Double scale
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1.5x scale

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.