Home / 542,002.62-747,943.81-312,569.58

Finding the Fourth Proportional to 542,002.62, 747,943.81 and 312,569.58

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Solution

The fourth proportional to 542,002.62, 747,943.81 and 312,569.58 is: 431,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,002.62 : 747,943.81 = 312,569.58 : x
  2. Step 2: Convert to fraction form
    542,002.62/747,943.81 = 312,569.58/x
  3. Step 3: Cross multiply
    542,002.62x = 747,943.81 × 312,569.58
  4. Step 4: Simplify right side
    542,002.62x = 233,784,484,578.67
  5. Step 5: Solve for x
    x = 233,784,484,578.67/542,002.62
  6. Step 6: Final answer
    x = 431,334.60

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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.