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Finding the Fourth Proportional to 526,199.18, 726,397.76 and 308,377.76

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Solution

The fourth proportional to 526,199.18, 726,397.76 and 308,377.76 is: 425,703.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,199.18 : 726,397.76 = 308,377.76 : x
  2. Step 2: Convert to fraction form
    526,199.18/726,397.76 = 308,377.76/x
  3. Step 3: Cross multiply
    526,199.18x = 726,397.76 × 308,377.76
  4. Step 4: Simplify right side
    526,199.18x = 224,004,912,555.93
  5. Step 5: Solve for x
    x = 224,004,912,555.93/526,199.18
  6. Step 6: Final answer
    x = 425,703.65

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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.