Home / 3,280,575.20-4,920,862.80-916,671.20

Finding the Fourth Proportional to 3,280,575.20, 4,920,862.80 and 916,671.20

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Solution

The fourth proportional to 3,280,575.20, 4,920,862.80 and 916,671.20 is: 1,375,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,575.20 : 4,920,862.80 = 916,671.20 : x
  2. Step 2: Convert to fraction form
    3,280,575.20/4,920,862.80 = 916,671.20/x
  3. Step 3: Cross multiply
    3,280,575.20x = 4,920,862.80 × 916,671.20
  4. Step 4: Simplify right side
    3,280,575.20x = 4,510,813,207,911.36
  5. Step 5: Solve for x
    x = 4,510,813,207,911.36/3,280,575.20
  6. Step 6: Final answer
    x = 1,375,006.80

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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.