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Finding the Fourth Proportional to 787,604.40, 1,182,281.40 and 488,422.80

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Solution

The fourth proportional to 787,604.40, 1,182,281.40 and 488,422.80 is: 733,176.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,604.40 : 1,182,281.40 = 488,422.80 : x
  2. Step 2: Convert to fraction form
    787,604.40/1,182,281.40 = 488,422.80/x
  3. Step 3: Cross multiply
    787,604.40x = 1,182,281.40 × 488,422.80
  4. Step 4: Simplify right side
    787,604.40x = 577,453,191,775.92
  5. Step 5: Solve for x
    x = 577,453,191,775.92/787,604.40
  6. Step 6: Final answer
    x = 733,176.70

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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.