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Finding the Fourth Proportional to 412,959.32, 570,084.10 and 276,943.72

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Solution

The fourth proportional to 412,959.32, 570,084.10 and 276,943.72 is: 382,316.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,959.32 : 570,084.10 = 276,943.72 : x
  2. Step 2: Convert to fraction form
    412,959.32/570,084.10 = 276,943.72/x
  3. Step 3: Cross multiply
    412,959.32x = 570,084.10 × 276,943.72
  4. Step 4: Simplify right side
    412,959.32x = 157,881,211,366.85
  5. Step 5: Solve for x
    x = 157,881,211,366.85/412,959.32
  6. Step 6: Final answer
    x = 382,316.62

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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.