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Finding the Fourth Proportional to 480,365.76, 662,930.28 and 276,447.72

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Solution

The fourth proportional to 480,365.76, 662,930.28 and 276,447.72 is: 381,512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,365.76 : 662,930.28 = 276,447.72 : x
  2. Step 2: Convert to fraction form
    480,365.76/662,930.28 = 276,447.72/x
  3. Step 3: Cross multiply
    480,365.76x = 662,930.28 × 276,447.72
  4. Step 4: Simplify right side
    480,365.76x = 183,265,564,424.96
  5. Step 5: Solve for x
    x = 183,265,564,424.96/480,365.76
  6. Step 6: Final answer
    x = 381,512.55

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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.