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Finding the Fourth Proportional to 473,419.52, 653,149.68 and 279,786.32

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Solution

The fourth proportional to 473,419.52, 653,149.68 and 279,786.32 is: 386,005.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,419.52 : 653,149.68 = 279,786.32 : x
  2. Step 2: Convert to fraction form
    473,419.52/653,149.68 = 279,786.32/x
  3. Step 3: Cross multiply
    473,419.52x = 653,149.68 × 279,786.32
  4. Step 4: Simplify right side
    473,419.52x = 182,742,345,376.38
  5. Step 5: Solve for x
    x = 182,742,345,376.38/473,419.52
  6. Step 6: Final answer
    x = 386,005.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.