Home / 1,209,697.20-1,814,545.80-368,139.60

Finding the Fourth Proportional to 1,209,697.20, 1,814,545.80 and 368,139.60

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Solution

The fourth proportional to 1,209,697.20, 1,814,545.80 and 368,139.60 is: 552,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,697.20 : 1,814,545.80 = 368,139.60 : x
  2. Step 2: Convert to fraction form
    1,209,697.20/1,814,545.80 = 368,139.60/x
  3. Step 3: Cross multiply
    1,209,697.20x = 1,814,545.80 × 368,139.60
  4. Step 4: Simplify right side
    1,209,697.20x = 668,006,164,993.68
  5. Step 5: Solve for x
    x = 668,006,164,993.68/1,209,697.20
  6. Step 6: Final answer
    x = 552,209.40

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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.