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Finding the Fourth Proportional to 576,487.60, 864,731.40 and 543,828.40

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Solution

The fourth proportional to 576,487.60, 864,731.40 and 543,828.40 is: 815,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,487.60 : 864,731.40 = 543,828.40 : x
  2. Step 2: Convert to fraction form
    576,487.60/864,731.40 = 543,828.40/x
  3. Step 3: Cross multiply
    576,487.60x = 864,731.40 × 543,828.40
  4. Step 4: Simplify right side
    576,487.60x = 470,265,493,691.76
  5. Step 5: Solve for x
    x = 470,265,493,691.76/576,487.60
  6. Step 6: Final answer
    x = 815,742.60

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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.