Home / 956,987.92-1,320,631.13-521,423.40

Finding the Fourth Proportional to 956,987.92, 1,320,631.13 and 521,423.40

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Solution

The fourth proportional to 956,987.92, 1,320,631.13 and 521,423.40 is: 719,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,987.92 : 1,320,631.13 = 521,423.40 : x
  2. Step 2: Convert to fraction form
    956,987.92/1,320,631.13 = 521,423.40/x
  3. Step 3: Cross multiply
    956,987.92x = 1,320,631.13 × 521,423.40
  4. Step 4: Simplify right side
    956,987.92x = 688,607,975,254.00
  5. Step 5: Solve for x
    x = 688,607,975,254.00/956,987.92
  6. Step 6: Final answer
    x = 719,557.65

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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.