Home / 879,972.60-1,318,922.10-459,031.80

Finding the Fourth Proportional to 879,972.60, 1,318,922.10 and 459,031.80

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Solution

The fourth proportional to 879,972.60, 1,318,922.10 and 459,031.80 is: 688,006.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,972.60 : 1,318,922.10 = 459,031.80 : x
  2. Step 2: Convert to fraction form
    879,972.60/1,318,922.10 = 459,031.80/x
  3. Step 3: Cross multiply
    879,972.60x = 1,318,922.10 × 459,031.80
  4. Step 4: Simplify right side
    879,972.60x = 605,427,185,622.78
  5. Step 5: Solve for x
    x = 605,427,185,622.78/879,972.60
  6. Step 6: Final answer
    x = 688,006.86

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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.