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Finding the Fourth Proportional to 576,015.60, 862,511.40 and 406,621.20

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Solution

The fourth proportional to 576,015.60, 862,511.40 and 406,621.20 is: 608,864.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,015.60 : 862,511.40 = 406,621.20 : x
  2. Step 2: Convert to fraction form
    576,015.60/862,511.40 = 406,621.20/x
  3. Step 3: Cross multiply
    576,015.60x = 862,511.40 × 406,621.20
  4. Step 4: Simplify right side
    576,015.60x = 350,715,420,481.68
  5. Step 5: Solve for x
    x = 350,715,420,481.68/576,015.60
  6. Step 6: Final answer
    x = 608,864.45

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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.