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Finding the Fourth Proportional to 619,864.65, 929,435.69 and 240,342

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Solution

The fourth proportional to 619,864.65, 929,435.69 and 240,342 is: 360,372.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,864.65 : 929,435.69 = 240,342 : x
  2. Step 2: Convert to fraction form
    619,864.65/929,435.69 = 240,342/x
  3. Step 3: Cross multiply
    619,864.65x = 929,435.69 × 240,342
  4. Step 4: Simplify right side
    619,864.65x = 223,382,432,605.98
  5. Step 5: Solve for x
    x = 223,382,432,605.98/619,864.65
  6. Step 6: Final answer
    x = 360,372.92

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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.