Home / 1,818,445.20-2,729,320.20-920,511.60

Finding the Fourth Proportional to 1,818,445.20, 2,729,320.20 and 920,511.60

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Solution

The fourth proportional to 1,818,445.20, 2,729,320.20 and 920,511.60 is: 1,381,603.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818,445.20 : 2,729,320.20 = 920,511.60 : x
  2. Step 2: Convert to fraction form
    1,818,445.20/2,729,320.20 = 920,511.60/x
  3. Step 3: Cross multiply
    1,818,445.20x = 2,729,320.20 × 920,511.60
  4. Step 4: Simplify right side
    1,818,445.20x = 2,512,370,904,214.32
  5. Step 5: Solve for x
    x = 2,512,370,904,214.32/1,818,445.20
  6. Step 6: Final answer
    x = 1,381,603.86

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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.