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Finding the Fourth Proportional to 565,995.18, 781,002.45 and 382,632.78

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Solution

The fourth proportional to 565,995.18, 781,002.45 and 382,632.78 is: 527,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,995.18 : 781,002.45 = 382,632.78 : x
  2. Step 2: Convert to fraction form
    565,995.18/781,002.45 = 382,632.78/x
  3. Step 3: Cross multiply
    565,995.18x = 781,002.45 × 382,632.78
  4. Step 4: Simplify right side
    565,995.18x = 298,837,138,630.31
  5. Step 5: Solve for x
    x = 298,837,138,630.31/565,995.18
  6. Step 6: Final answer
    x = 527,985.31

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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.