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Finding the Fourth Proportional to 556,557.40, 834,836.10 and 276,621.40

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Solution

The fourth proportional to 556,557.40, 834,836.10 and 276,621.40 is: 414,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,557.40 : 834,836.10 = 276,621.40 : x
  2. Step 2: Convert to fraction form
    556,557.40/834,836.10 = 276,621.40/x
  3. Step 3: Cross multiply
    556,557.40x = 834,836.10 × 276,621.40
  4. Step 4: Simplify right side
    556,557.40x = 230,933,530,752.54
  5. Step 5: Solve for x
    x = 230,933,530,752.54/556,557.40
  6. Step 6: Final answer
    x = 414,932.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.