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Finding the Fourth Proportional to 480,397.61, 663,014.61 and 276,444.36

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Solution

The fourth proportional to 480,397.61, 663,014.61 and 276,444.36 is: 381,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,397.61 : 663,014.61 = 276,444.36 : x
  2. Step 2: Convert to fraction form
    480,397.61/663,014.61 = 276,444.36/x
  3. Step 3: Cross multiply
    480,397.61x = 663,014.61 × 276,444.36
  4. Step 4: Simplify right side
    480,397.61x = 183,286,649,532.10
  5. Step 5: Solve for x
    x = 183,286,649,532.10/480,397.61
  6. Step 6: Final answer
    x = 381,531.15

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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.