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Finding the Fourth Proportional to 672,573.34, 928,157.47 and 370,778.14

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Solution

The fourth proportional to 672,573.34, 928,157.47 and 370,778.14 is: 511,677.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,573.34 : 928,157.47 = 370,778.14 : x
  2. Step 2: Convert to fraction form
    672,573.34/928,157.47 = 370,778.14/x
  3. Step 3: Cross multiply
    672,573.34x = 928,157.47 × 370,778.14
  4. Step 4: Simplify right side
    672,573.34x = 344,140,500,353.71
  5. Step 5: Solve for x
    x = 344,140,500,353.71/672,573.34
  6. Step 6: Final answer
    x = 511,677.28

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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.