Home / 719,029.42-992,281.21-396,760.28

Finding the Fourth Proportional to 719,029.42, 992,281.21 and 396,760.28

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Solution

The fourth proportional to 719,029.42, 992,281.21 and 396,760.28 is: 547,540.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,029.42 : 992,281.21 = 396,760.28 : x
  2. Step 2: Convert to fraction form
    719,029.42/992,281.21 = 396,760.28/x
  3. Step 3: Cross multiply
    719,029.42x = 992,281.21 × 396,760.28
  4. Step 4: Simplify right side
    719,029.42x = 393,697,770,718.34
  5. Step 5: Solve for x
    x = 393,697,770,718.34/719,029.42
  6. Step 6: Final answer
    x = 547,540.56

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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.