Home / 1,099,538.10-1,649,307.15-389,637.90

Finding the Fourth Proportional to 1,099,538.10, 1,649,307.15 and 389,637.90

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Solution

The fourth proportional to 1,099,538.10, 1,649,307.15 and 389,637.90 is: 584,456.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,538.10 : 1,649,307.15 = 389,637.90 : x
  2. Step 2: Convert to fraction form
    1,099,538.10/1,649,307.15 = 389,637.90/x
  3. Step 3: Cross multiply
    1,099,538.10x = 1,649,307.15 × 389,637.90
  4. Step 4: Simplify right side
    1,099,538.10x = 642,632,574,380.99
  5. Step 5: Solve for x
    x = 642,632,574,380.99/1,099,538.10
  6. Step 6: Final answer
    x = 584,456.85

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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.