Home / 1,187,552.23-1,781,338.07-777,567.21

Finding the Fourth Proportional to 1,187,552.23, 1,781,338.07 and 777,567.21

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Solution

The fourth proportional to 1,187,552.23, 1,781,338.07 and 777,567.21 is: 1,166,357.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,552.23 : 1,781,338.07 = 777,567.21 : x
  2. Step 2: Convert to fraction form
    1,187,552.23/1,781,338.07 = 777,567.21/x
  3. Step 3: Cross multiply
    1,187,552.23x = 1,781,338.07 × 777,567.21
  4. Step 4: Simplify right side
    1,187,552.23x = 1,385,110,072,774.86
  5. Step 5: Solve for x
    x = 1,385,110,072,774.86/1,187,552.23
  6. Step 6: Final answer
    x = 1,166,357.18

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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.