Home / 719,365.60-992,724.72-397,075.92

Finding the Fourth Proportional to 719,365.60, 992,724.72 and 397,075.92

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Solution

The fourth proportional to 719,365.60, 992,724.72 and 397,075.92 is: 547,964.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,365.60 : 992,724.72 = 397,075.92 : x
  2. Step 2: Convert to fraction form
    719,365.60/992,724.72 = 397,075.92/x
  3. Step 3: Cross multiply
    719,365.60x = 992,724.72 × 397,075.92
  4. Step 4: Simplify right side
    719,365.60x = 394,187,081,500.74
  5. Step 5: Solve for x
    x = 394,187,081,500.74/719,365.60
  6. Step 6: Final answer
    x = 547,964.88

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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.