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Finding the Fourth Proportional to 761,672.10, 1,142,180.10 and 382,446.30

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Solution

The fourth proportional to 761,672.10, 1,142,180.10 and 382,446.30 is: 573,504.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,672.10 : 1,142,180.10 = 382,446.30 : x
  2. Step 2: Convert to fraction form
    761,672.10/1,142,180.10 = 382,446.30/x
  3. Step 3: Cross multiply
    761,672.10x = 1,142,180.10 × 382,446.30
  4. Step 4: Simplify right side
    761,672.10x = 436,822,553,178.63
  5. Step 5: Solve for x
    x = 436,822,553,178.63/761,672.10
  6. Step 6: Final answer
    x = 573,504.73

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Double scale
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1.5x scale

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.