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Finding the Fourth Proportional to 556,803.20, 834,621.60 and 219,713.60

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Solution

The fourth proportional to 556,803.20, 834,621.60 and 219,713.60 is: 329,340.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,803.20 : 834,621.60 = 219,713.60 : x
  2. Step 2: Convert to fraction form
    556,803.20/834,621.60 = 219,713.60/x
  3. Step 3: Cross multiply
    556,803.20x = 834,621.60 × 219,713.60
  4. Step 4: Simplify right side
    556,803.20x = 183,377,716,373.76
  5. Step 5: Solve for x
    x = 183,377,716,373.76/556,803.20
  6. Step 6: Final answer
    x = 329,340.27

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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.