Home / 1,209,734.72-1,814,715.12-356,807.20

Finding the Fourth Proportional to 1,209,734.72, 1,814,715.12 and 356,807.20

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Solution

The fourth proportional to 1,209,734.72, 1,814,715.12 and 356,807.20 is: 535,244.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,734.72 : 1,814,715.12 = 356,807.20 : x
  2. Step 2: Convert to fraction form
    1,209,734.72/1,814,715.12 = 356,807.20/x
  3. Step 3: Cross multiply
    1,209,734.72x = 1,814,715.12 × 356,807.20
  4. Step 4: Simplify right side
    1,209,734.72x = 647,503,420,764.86
  5. Step 5: Solve for x
    x = 647,503,420,764.86/1,209,734.72
  6. Step 6: Final answer
    x = 535,244.14

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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.