Home / 710,061.28-1,065,620.86-521,010.16

Finding the Fourth Proportional to 710,061.28, 1,065,620.86 and 521,010.16

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Solution

The fourth proportional to 710,061.28, 1,065,620.86 and 521,010.16 is: 781,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,061.28 : 1,065,620.86 = 521,010.16 : x
  2. Step 2: Convert to fraction form
    710,061.28/1,065,620.86 = 521,010.16/x
  3. Step 3: Cross multiply
    710,061.28x = 1,065,620.86 × 521,010.16
  4. Step 4: Simplify right side
    710,061.28x = 555,199,294,767.94
  5. Step 5: Solve for x
    x = 555,199,294,767.94/710,061.28
  6. Step 6: Final answer
    x = 781,903.35

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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.