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Finding the Fourth Proportional to 652,158.70, 899,978.18 and 361,814.31

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Solution

The fourth proportional to 652,158.70, 899,978.18 and 361,814.31 is: 499,303.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,158.70 : 899,978.18 = 361,814.31 : x
  2. Step 2: Convert to fraction form
    652,158.70/899,978.18 = 361,814.31/x
  3. Step 3: Cross multiply
    652,158.70x = 899,978.18 × 361,814.31
  4. Step 4: Simplify right side
    652,158.70x = 325,624,982,402.68
  5. Step 5: Solve for x
    x = 325,624,982,402.68/652,158.70
  6. Step 6: Final answer
    x = 499,303.29

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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.