Home / 961,500.31-1,442,252.91-392,881.40

Finding the Fourth Proportional to 961,500.31, 1,442,252.91 and 392,881.40

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Solution

The fourth proportional to 961,500.31, 1,442,252.91 and 392,881.40 is: 589,323.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,500.31 : 1,442,252.91 = 392,881.40 : x
  2. Step 2: Convert to fraction form
    961,500.31/1,442,252.91 = 392,881.40/x
  3. Step 3: Cross multiply
    961,500.31x = 1,442,252.91 × 392,881.40
  4. Step 4: Simplify right side
    961,500.31x = 566,634,348,008.08
  5. Step 5: Solve for x
    x = 566,634,348,008.08/961,500.31
  6. Step 6: Final answer
    x = 589,323.11

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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.