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Finding the Fourth Proportional to 480,711.47, 663,308.13 and 276,722.97

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Solution

The fourth proportional to 480,711.47, 663,308.13 and 276,722.97 is: 381,835.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,711.47 : 663,308.13 = 276,722.97 : x
  2. Step 2: Convert to fraction form
    480,711.47/663,308.13 = 276,722.97/x
  3. Step 3: Cross multiply
    480,711.47x = 663,308.13 × 276,722.97
  4. Step 4: Simplify right side
    480,711.47x = 183,552,596,483.59
  5. Step 5: Solve for x
    x = 183,552,596,483.59/480,711.47
  6. Step 6: Final answer
    x = 381,835.28

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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.