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Finding the Fourth Proportional to 887,202.20, 1,330,803.30 and 354,805.40

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Solution

The fourth proportional to 887,202.20, 1,330,803.30 and 354,805.40 is: 532,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,202.20 : 1,330,803.30 = 354,805.40 : x
  2. Step 2: Convert to fraction form
    887,202.20/1,330,803.30 = 354,805.40/x
  3. Step 3: Cross multiply
    887,202.20x = 1,330,803.30 × 354,805.40
  4. Step 4: Simplify right side
    887,202.20x = 472,176,197,177.82
  5. Step 5: Solve for x
    x = 472,176,197,177.82/887,202.20
  6. Step 6: Final answer
    x = 532,208.10

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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.