Home / 921,869.92-1,272,127.44-513,958.24

Finding the Fourth Proportional to 921,869.92, 1,272,127.44 and 513,958.24

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Solution

The fourth proportional to 921,869.92, 1,272,127.44 and 513,958.24 is: 709,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,869.92 : 1,272,127.44 = 513,958.24 : x
  2. Step 2: Convert to fraction form
    921,869.92/1,272,127.44 = 513,958.24/x
  3. Step 3: Cross multiply
    921,869.92x = 1,272,127.44 × 513,958.24
  4. Step 4: Simplify right side
    921,869.92x = 653,820,380,118.11
  5. Step 5: Solve for x
    x = 653,820,380,118.11/921,869.92
  6. Step 6: Final answer
    x = 709,232.80

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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.