Home / 1,240,392.38-1,859,407.56-398,353.64

Finding the Fourth Proportional to 1,240,392.38, 1,859,407.56 and 398,353.64

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Solution

The fourth proportional to 1,240,392.38, 1,859,407.56 and 398,353.64 is: 597,151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,392.38 : 1,859,407.56 = 398,353.64 : x
  2. Step 2: Convert to fraction form
    1,240,392.38/1,859,407.56 = 398,353.64/x
  3. Step 3: Cross multiply
    1,240,392.38x = 1,859,407.56 × 398,353.64
  4. Step 4: Simplify right side
    1,240,392.38x = 740,701,769,769.52
  5. Step 5: Solve for x
    x = 740,701,769,769.52/1,240,392.38
  6. Step 6: Final answer
    x = 597,151.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.