Home / 498,396.60-747,692.10-198,826.20

Finding the Fourth Proportional to 498,396.60, 747,692.10 and 198,826.20

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Solution

The fourth proportional to 498,396.60, 747,692.10 and 198,826.20 is: 298,278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,396.60 : 747,692.10 = 198,826.20 : x
  2. Step 2: Convert to fraction form
    498,396.60/747,692.10 = 198,826.20/x
  3. Step 3: Cross multiply
    498,396.60x = 747,692.10 × 198,826.20
  4. Step 4: Simplify right side
    498,396.60x = 148,660,779,013.02
  5. Step 5: Solve for x
    x = 148,660,779,013.02/498,396.60
  6. Step 6: Final answer
    x = 298,278.08

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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.