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Finding the Fourth Proportional to 719,400.60, 992,773.02 and 397,110.90

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Solution

The fourth proportional to 719,400.60, 992,773.02 and 397,110.90 is: 548,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,400.60 : 992,773.02 = 397,110.90 : x
  2. Step 2: Convert to fraction form
    719,400.60/992,773.02 = 397,110.90/x
  3. Step 3: Cross multiply
    719,400.60x = 992,773.02 × 397,110.90
  4. Step 4: Simplify right side
    719,400.60x = 394,240,987,467.92
  5. Step 5: Solve for x
    x = 394,240,987,467.92/719,400.60
  6. Step 6: Final answer
    x = 548,013.15

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1.5x scale

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.