Home / 529,515.40-730,615.38-314,726.92

Finding the Fourth Proportional to 529,515.40, 730,615.38 and 314,726.92

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Solution

The fourth proportional to 529,515.40, 730,615.38 and 314,726.92 is: 434,254.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,515.40 : 730,615.38 = 314,726.92 : x
  2. Step 2: Convert to fraction form
    529,515.40/730,615.38 = 314,726.92/x
  3. Step 3: Cross multiply
    529,515.40x = 730,615.38 × 314,726.92
  4. Step 4: Simplify right side
    529,515.40x = 229,944,328,252.03
  5. Step 5: Solve for x
    x = 229,944,328,252.03/529,515.40
  6. Step 6: Final answer
    x = 434,254.28

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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.