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Finding the Fourth Proportional to 658,847.64, 909,209.70 and 357,041.64

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Solution

The fourth proportional to 658,847.64, 909,209.70 and 357,041.64 is: 492,717.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,847.64 : 909,209.70 = 357,041.64 : x
  2. Step 2: Convert to fraction form
    658,847.64/909,209.70 = 357,041.64/x
  3. Step 3: Cross multiply
    658,847.64x = 909,209.70 × 357,041.64
  4. Step 4: Simplify right side
    658,847.64x = 324,625,722,391.91
  5. Step 5: Solve for x
    x = 324,625,722,391.91/658,847.64
  6. Step 6: Final answer
    x = 492,717.44

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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.