Home / 719,569.46-992,999.49-397,272.69

Finding the Fourth Proportional to 719,569.46, 992,999.49 and 397,272.69

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Solution

The fourth proportional to 719,569.46, 992,999.49 and 397,272.69 is: 548,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,569.46 : 992,999.49 = 397,272.69 : x
  2. Step 2: Convert to fraction form
    719,569.46/992,999.49 = 397,272.69/x
  3. Step 3: Cross multiply
    719,569.46x = 992,999.49 × 397,272.69
  4. Step 4: Simplify right side
    719,569.46x = 394,491,578,560.93
  5. Step 5: Solve for x
    x = 394,491,578,560.93/719,569.46
  6. Step 6: Final answer
    x = 548,232.80

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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.