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Finding the Fourth Proportional to 652,451.60, 978,345.30 and 253,206.92

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Solution

The fourth proportional to 652,451.60, 978,345.30 and 253,206.92 is: 379,681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,451.60 : 978,345.30 = 253,206.92 : x
  2. Step 2: Convert to fraction form
    652,451.60/978,345.30 = 253,206.92/x
  3. Step 3: Cross multiply
    652,451.60x = 978,345.30 × 253,206.92
  4. Step 4: Simplify right side
    652,451.60x = 247,723,800,109.48
  5. Step 5: Solve for x
    x = 247,723,800,109.48/652,451.60
  6. Step 6: Final answer
    x = 379,681.50

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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.