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Finding the Fourth Proportional to 563,951.26, 778,256.55 and 309,304.27

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Solution

The fourth proportional to 563,951.26, 778,256.55 and 309,304.27 is: 426,841.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,951.26 : 778,256.55 = 309,304.27 : x
  2. Step 2: Convert to fraction form
    563,951.26/778,256.55 = 309,304.27/x
  3. Step 3: Cross multiply
    563,951.26x = 778,256.55 × 309,304.27
  4. Step 4: Simplify right side
    563,951.26x = 240,718,074,070.47
  5. Step 5: Solve for x
    x = 240,718,074,070.47/563,951.26
  6. Step 6: Final answer
    x = 426,841.98

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1.5x scale

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.