Home / 524,154.43-721,548.05-387,931.66

Finding the Fourth Proportional to 524,154.43, 721,548.05 and 387,931.66

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Solution

The fourth proportional to 524,154.43, 721,548.05 and 387,931.66 is: 534,024.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,154.43 : 721,548.05 = 387,931.66 : x
  2. Step 2: Convert to fraction form
    524,154.43/721,548.05 = 387,931.66/x
  3. Step 3: Cross multiply
    524,154.43x = 721,548.05 × 387,931.66
  4. Step 4: Simplify right side
    524,154.43x = 279,911,335,303.56
  5. Step 5: Solve for x
    x = 279,911,335,303.56/524,154.43
  6. Step 6: Final answer
    x = 534,024.56

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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.