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Finding the Fourth Proportional to 488,710.40, 732,482.40 and 204,400.40

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Solution

The fourth proportional to 488,710.40, 732,482.40 and 204,400.40 is: 306,356.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,710.40 : 732,482.40 = 204,400.40 : x
  2. Step 2: Convert to fraction form
    488,710.40/732,482.40 = 204,400.40/x
  3. Step 3: Cross multiply
    488,710.40x = 732,482.40 × 204,400.40
  4. Step 4: Simplify right side
    488,710.40x = 149,719,695,552.96
  5. Step 5: Solve for x
    x = 149,719,695,552.96/488,710.40
  6. Step 6: Final answer
    x = 306,356.68

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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.