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Finding the Fourth Proportional to 526,532.95, 726,384.66 and 308,631.15

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Solution

The fourth proportional to 526,532.95, 726,384.66 and 308,631.15 is: 425,775.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,532.95 : 726,384.66 = 308,631.15 : x
  2. Step 2: Convert to fraction form
    526,532.95/726,384.66 = 308,631.15/x
  3. Step 3: Cross multiply
    526,532.95x = 726,384.66 × 308,631.15
  4. Step 4: Simplify right side
    526,532.95x = 224,184,930,562.31
  5. Step 5: Solve for x
    x = 224,184,930,562.31/526,532.95
  6. Step 6: Final answer
    x = 425,775.69

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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.