Home / 1,207,445.40-1,811,168.10-872,834.40

Finding the Fourth Proportional to 1,207,445.40, 1,811,168.10 and 872,834.40

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Solution

The fourth proportional to 1,207,445.40, 1,811,168.10 and 872,834.40 is: 1,309,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,445.40 : 1,811,168.10 = 872,834.40 : x
  2. Step 2: Convert to fraction form
    1,207,445.40/1,811,168.10 = 872,834.40/x
  3. Step 3: Cross multiply
    1,207,445.40x = 1,811,168.10 × 872,834.40
  4. Step 4: Simplify right side
    1,207,445.40x = 1,580,849,821,862.64
  5. Step 5: Solve for x
    x = 1,580,849,821,862.64/1,207,445.40
  6. Step 6: Final answer
    x = 1,309,251.60

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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.