Home / 729,453,931.90-1,006,654,546.90-394,933,744.24

Finding the Fourth Proportional to 729,453,931.90, 1,006,654,546.90 and 394,933,744.24

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Solution

The fourth proportional to 729,453,931.90, 1,006,654,546.90 and 394,933,744.24 is: 545,012,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,453,931.90 : 1,006,654,546.90 = 394,933,744.24 : x
  2. Step 2: Convert to fraction form
    729,453,931.90/1,006,654,546.90 = 394,933,744.24/x
  3. Step 3: Cross multiply
    729,453,931.90x = 1,006,654,546.90 × 394,933,744.24
  4. Step 4: Simplify right side
    729,453,931.90x = 397,561,849,363,437,696
  5. Step 5: Solve for x
    x = 397,561,849,363,437,696/729,453,931.90
  6. Step 6: Final answer
    x = 545,012,963.78

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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.