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Finding the Fourth Proportional to 543,998.10, 750,702.45 and 302,274.46

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Solution

The fourth proportional to 543,998.10, 750,702.45 and 302,274.46 is: 417,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,998.10 : 750,702.45 = 302,274.46 : x
  2. Step 2: Convert to fraction form
    543,998.10/750,702.45 = 302,274.46/x
  3. Step 3: Cross multiply
    543,998.10x = 750,702.45 × 302,274.46
  4. Step 4: Simplify right side
    543,998.10x = 226,918,177,694.43
  5. Step 5: Solve for x
    x = 226,918,177,694.43/543,998.10
  6. Step 6: Final answer
    x = 417,130.46

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Double scale
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Similar ratio
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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.