Home / 1,375,155.04-2,062,726.24-428,526.40

Finding the Fourth Proportional to 1,375,155.04, 2,062,726.24 and 428,526.40

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Solution

The fourth proportional to 1,375,155.04, 2,062,726.24 and 428,526.40 is: 642,787.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,155.04 : 2,062,726.24 = 428,526.40 : x
  2. Step 2: Convert to fraction form
    1,375,155.04/2,062,726.24 = 428,526.40/x
  3. Step 3: Cross multiply
    1,375,155.04x = 2,062,726.24 × 428,526.40
  4. Step 4: Simplify right side
    1,375,155.04x = 883,932,649,812.74
  5. Step 5: Solve for x
    x = 883,932,649,812.74/1,375,155.04
  6. Step 6: Final answer
    x = 642,787.63

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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.