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Finding the Fourth Proportional to 488,362.40, 732,543.60 and 310,996.70

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Solution

The fourth proportional to 488,362.40, 732,543.60 and 310,996.70 is: 466,495.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,362.40 : 732,543.60 = 310,996.70 : x
  2. Step 2: Convert to fraction form
    488,362.40/732,543.60 = 310,996.70/x
  3. Step 3: Cross multiply
    488,362.40x = 732,543.60 × 310,996.70
  4. Step 4: Simplify right side
    488,362.40x = 227,818,642,206.12
  5. Step 5: Solve for x
    x = 227,818,642,206.12/488,362.40
  6. Step 6: Final answer
    x = 466,495.05

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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.