Home / 661,641.30-992,721.15-262,214.10

Finding the Fourth Proportional to 661,641.30, 992,721.15 and 262,214.10

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Solution

The fourth proportional to 661,641.30, 992,721.15 and 262,214.10 is: 393,423.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,641.30 : 992,721.15 = 262,214.10 : x
  2. Step 2: Convert to fraction form
    661,641.30/992,721.15 = 262,214.10/x
  3. Step 3: Cross multiply
    661,641.30x = 992,721.15 × 262,214.10
  4. Step 4: Simplify right side
    661,641.30x = 260,305,482,898.22
  5. Step 5: Solve for x
    x = 260,305,482,898.22/661,641.30
  6. Step 6: Final answer
    x = 393,423.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.