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Finding the Fourth Proportional to 480,428.68, 663,057.36 and 276,475.36

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Solution

The fourth proportional to 480,428.68, 663,057.36 and 276,475.36 is: 381,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,428.68 : 663,057.36 = 276,475.36 : x
  2. Step 2: Convert to fraction form
    480,428.68/663,057.36 = 276,475.36/x
  3. Step 3: Cross multiply
    480,428.68x = 663,057.36 × 276,475.36
  4. Step 4: Simplify right side
    480,428.68x = 183,319,022,306.65
  5. Step 5: Solve for x
    x = 183,319,022,306.65/480,428.68
  6. Step 6: Final answer
    x = 381,573.85

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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.