Home / 719,476.37-992,864.79-397,178.18

Finding the Fourth Proportional to 719,476.37, 992,864.79 and 397,178.18

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Solution

The fourth proportional to 719,476.37, 992,864.79 and 397,178.18 is: 548,098.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,476.37 : 992,864.79 = 397,178.18 : x
  2. Step 2: Convert to fraction form
    719,476.37/992,864.79 = 397,178.18/x
  3. Step 3: Cross multiply
    719,476.37x = 992,864.79 × 397,178.18
  4. Step 4: Simplify right side
    719,476.37x = 394,344,230,278.28
  5. Step 5: Solve for x
    x = 394,344,230,278.28/719,476.37
  6. Step 6: Final answer
    x = 548,098.93

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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.