Home / 1,187,703.40-1,781,555.10-1,103,722.60

Finding the Fourth Proportional to 1,187,703.40, 1,781,555.10 and 1,103,722.60

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Solution

The fourth proportional to 1,187,703.40, 1,781,555.10 and 1,103,722.60 is: 1,655,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,703.40 : 1,781,555.10 = 1,103,722.60 : x
  2. Step 2: Convert to fraction form
    1,187,703.40/1,781,555.10 = 1,103,722.60/x
  3. Step 3: Cross multiply
    1,187,703.40x = 1,781,555.10 × 1,103,722.60
  4. Step 4: Simplify right side
    1,187,703.40x = 1,966,342,627,015.26
  5. Step 5: Solve for x
    x = 1,966,342,627,015.26/1,187,703.40
  6. Step 6: Final answer
    x = 1,655,583.90

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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.