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Finding the Fourth Proportional to 488,573.70, 732,860.55 and 329,141.40

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Solution

The fourth proportional to 488,573.70, 732,860.55 and 329,141.40 is: 493,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,573.70 : 732,860.55 = 329,141.40 : x
  2. Step 2: Convert to fraction form
    488,573.70/732,860.55 = 329,141.40/x
  3. Step 3: Cross multiply
    488,573.70x = 732,860.55 × 329,141.40
  4. Step 4: Simplify right side
    488,573.70x = 241,214,747,431.77
  5. Step 5: Solve for x
    x = 241,214,747,431.77/488,573.70
  6. Step 6: Final answer
    x = 493,712.10

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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.