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Finding the Fourth Proportional to 652,232.60, 978,348.90 and 439,656.20

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Solution

The fourth proportional to 652,232.60, 978,348.90 and 439,656.20 is: 659,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,232.60 : 978,348.90 = 439,656.20 : x
  2. Step 2: Convert to fraction form
    652,232.60/978,348.90 = 439,656.20/x
  3. Step 3: Cross multiply
    652,232.60x = 978,348.90 × 439,656.20
  4. Step 4: Simplify right side
    652,232.60x = 430,137,159,648.18
  5. Step 5: Solve for x
    x = 430,137,159,648.18/652,232.60
  6. Step 6: Final answer
    x = 659,484.30

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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.