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Finding the Fourth Proportional to 480,698.76, 663,414.12 and 276,756.96

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Solution

The fourth proportional to 480,698.76, 663,414.12 and 276,756.96 is: 381,953.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,698.76 : 663,414.12 = 276,756.96 : x
  2. Step 2: Convert to fraction form
    480,698.76/663,414.12 = 276,756.96/x
  3. Step 3: Cross multiply
    480,698.76x = 663,414.12 × 276,756.96
  4. Step 4: Simplify right side
    480,698.76x = 183,604,475,072.28
  5. Step 5: Solve for x
    x = 183,604,475,072.28/480,698.76
  6. Step 6: Final answer
    x = 381,953.29

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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.