Home / 1,020,842.72-1,531,264.64-459,221.12

Finding the Fourth Proportional to 1,020,842.72, 1,531,264.64 and 459,221.12

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Solution

The fourth proportional to 1,020,842.72, 1,531,264.64 and 459,221.12 is: 688,831.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,842.72 : 1,531,264.64 = 459,221.12 : x
  2. Step 2: Convert to fraction form
    1,020,842.72/1,531,264.64 = 459,221.12/x
  3. Step 3: Cross multiply
    1,020,842.72x = 1,531,264.64 × 459,221.12
  4. Step 4: Simplify right side
    1,020,842.72x = 703,189,062,997.20
  5. Step 5: Solve for x
    x = 703,189,062,997.20/1,020,842.72
  6. Step 6: Final answer
    x = 688,831.93

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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.