Home / 1,224,122.72-1,836,479.28-425,288

Finding the Fourth Proportional to 1,224,122.72, 1,836,479.28 and 425,288

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Solution

The fourth proportional to 1,224,122.72, 1,836,479.28 and 425,288 is: 638,034.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,122.72 : 1,836,479.28 = 425,288 : x
  2. Step 2: Convert to fraction form
    1,224,122.72/1,836,479.28 = 425,288/x
  3. Step 3: Cross multiply
    1,224,122.72x = 1,836,479.28 × 425,288
  4. Step 4: Simplify right side
    1,224,122.72x = 781,032,600,032.64
  5. Step 5: Solve for x
    x = 781,032,600,032.64/1,224,122.72
  6. Step 6: Final answer
    x = 638,034.56

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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.