Home / 1,225,747.28-1,838,165.88-426,823.76

Finding the Fourth Proportional to 1,225,747.28, 1,838,165.88 and 426,823.76

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Solution

The fourth proportional to 1,225,747.28, 1,838,165.88 and 426,823.76 is: 640,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,747.28 : 1,838,165.88 = 426,823.76 : x
  2. Step 2: Convert to fraction form
    1,225,747.28/1,838,165.88 = 426,823.76/x
  3. Step 3: Cross multiply
    1,225,747.28x = 1,838,165.88 × 426,823.76
  4. Step 4: Simplify right side
    1,225,747.28x = 784,572,872,405.31
  5. Step 5: Solve for x
    x = 784,572,872,405.31/1,225,747.28
  6. Step 6: Final answer
    x = 640,077.19

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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.