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Finding the Fourth Proportional to 884,407.77, 1,326,680.91 and 315,911.70

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Solution

The fourth proportional to 884,407.77, 1,326,680.91 and 315,911.70 is: 473,892.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,407.77 : 1,326,680.91 = 315,911.70 : x
  2. Step 2: Convert to fraction form
    884,407.77/1,326,680.91 = 315,911.70/x
  3. Step 3: Cross multiply
    884,407.77x = 1,326,680.91 × 315,911.70
  4. Step 4: Simplify right side
    884,407.77x = 419,114,021,635.65
  5. Step 5: Solve for x
    x = 419,114,021,635.65/884,407.77
  6. Step 6: Final answer
    x = 473,892.29

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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.