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Finding the Fourth Proportional to 604,490.40, 907,391.70 and 471,958.20

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Solution

The fourth proportional to 604,490.40, 907,391.70 and 471,958.20 is: 708,449.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,490.40 : 907,391.70 = 471,958.20 : x
  2. Step 2: Convert to fraction form
    604,490.40/907,391.70 = 471,958.20/x
  3. Step 3: Cross multiply
    604,490.40x = 907,391.70 × 471,958.20
  4. Step 4: Simplify right side
    604,490.40x = 428,250,953,426.94
  5. Step 5: Solve for x
    x = 428,250,953,426.94/604,490.40
  6. Step 6: Final answer
    x = 708,449.55

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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.