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Finding the Fourth Proportional to 542,225.14, 748,363.25 and 312,741.27

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Solution

The fourth proportional to 542,225.14, 748,363.25 and 312,741.27 is: 431,636.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,225.14 : 748,363.25 = 312,741.27 : x
  2. Step 2: Convert to fraction form
    542,225.14/748,363.25 = 312,741.27/x
  3. Step 3: Cross multiply
    542,225.14x = 748,363.25 × 312,741.27
  4. Step 4: Simplify right side
    542,225.14x = 234,044,074,008.18
  5. Step 5: Solve for x
    x = 234,044,074,008.18/542,225.14
  6. Step 6: Final answer
    x = 431,636.34

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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.