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Finding the Fourth Proportional to 506,390.43, 759,191.27 and 253,540.63

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Solution

The fourth proportional to 506,390.43, 759,191.27 and 253,540.63 is: 380,113.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,390.43 : 759,191.27 = 253,540.63 : x
  2. Step 2: Convert to fraction form
    506,390.43/759,191.27 = 253,540.63/x
  3. Step 3: Cross multiply
    506,390.43x = 759,191.27 × 253,540.63
  4. Step 4: Simplify right side
    506,390.43x = 192,485,832,567.59
  5. Step 5: Solve for x
    x = 192,485,832,567.59/506,390.43
  6. Step 6: Final answer
    x = 380,113.49

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.