Home / 764,439.04-1,054,963.28-424,900

Finding the Fourth Proportional to 764,439.04, 1,054,963.28 and 424,900

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Solution

The fourth proportional to 764,439.04, 1,054,963.28 and 424,900 is: 586,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,439.04 : 1,054,963.28 = 424,900 : x
  2. Step 2: Convert to fraction form
    764,439.04/1,054,963.28 = 424,900/x
  3. Step 3: Cross multiply
    764,439.04x = 1,054,963.28 × 424,900
  4. Step 4: Simplify right side
    764,439.04x = 448,253,897,672
  5. Step 5: Solve for x
    x = 448,253,897,672/764,439.04
  6. Step 6: Final answer
    x = 586,382.79

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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.