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Finding the Fourth Proportional to 887,424.60, 1,329,168.60 and 354,671.40

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Solution

The fourth proportional to 887,424.60, 1,329,168.60 and 354,671.40 is: 531,220.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,424.60 : 1,329,168.60 = 354,671.40 : x
  2. Step 2: Convert to fraction form
    887,424.60/1,329,168.60 = 354,671.40/x
  3. Step 3: Cross multiply
    887,424.60x = 1,329,168.60 × 354,671.40
  4. Step 4: Simplify right side
    887,424.60x = 471,418,088,198.04
  5. Step 5: Solve for x
    x = 471,418,088,198.04/887,424.60
  6. Step 6: Final answer
    x = 531,220.44

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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.