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Finding the Fourth Proportional to 652,468.64, 978,210.54 and 427,885.62

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Solution

The fourth proportional to 652,468.64, 978,210.54 and 427,885.62 is: 641,505.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,468.64 : 978,210.54 = 427,885.62 : x
  2. Step 2: Convert to fraction form
    652,468.64/978,210.54 = 427,885.62/x
  3. Step 3: Cross multiply
    652,468.64x = 978,210.54 × 427,885.62
  4. Step 4: Simplify right side
    652,468.64x = 418,562,223,398.44
  5. Step 5: Solve for x
    x = 418,562,223,398.44/652,468.64
  6. Step 6: Final answer
    x = 641,505.50

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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.