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Finding the Fourth Proportional to 552,238.40, 826,514.40 and 386,350.40

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Solution

The fourth proportional to 552,238.40, 826,514.40 and 386,350.40 is: 578,236.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,238.40 : 826,514.40 = 386,350.40 : x
  2. Step 2: Convert to fraction form
    552,238.40/826,514.40 = 386,350.40/x
  3. Step 3: Cross multiply
    552,238.40x = 826,514.40 × 386,350.40
  4. Step 4: Simplify right side
    552,238.40x = 319,324,169,045.76
  5. Step 5: Solve for x
    x = 319,324,169,045.76/552,238.40
  6. Step 6: Final answer
    x = 578,236.08

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1.5x scale

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.