Home / 1,280,221.05-1,766,691.77-707,223.81

Finding the Fourth Proportional to 1,280,221.05, 1,766,691.77 and 707,223.81

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Solution

The fourth proportional to 1,280,221.05, 1,766,691.77 and 707,223.81 is: 975,961.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,221.05 : 1,766,691.77 = 707,223.81 : x
  2. Step 2: Convert to fraction form
    1,280,221.05/1,766,691.77 = 707,223.81/x
  3. Step 3: Cross multiply
    1,280,221.05x = 1,766,691.77 × 707,223.81
  4. Step 4: Simplify right side
    1,280,221.05x = 1,249,446,481,138.92
  5. Step 5: Solve for x
    x = 1,249,446,481,138.92/1,280,221.05
  6. Step 6: Final answer
    x = 975,961.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.