Home / 815,712.57-1,125,715.29-558,129.77

Finding the Fourth Proportional to 815,712.57, 1,125,715.29 and 558,129.77

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Solution

The fourth proportional to 815,712.57, 1,125,715.29 and 558,129.77 is: 770,240.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,712.57 : 1,125,715.29 = 558,129.77 : x
  2. Step 2: Convert to fraction form
    815,712.57/1,125,715.29 = 558,129.77/x
  3. Step 3: Cross multiply
    815,712.57x = 1,125,715.29 × 558,129.77
  4. Step 4: Simplify right side
    815,712.57x = 628,295,210,264.61
  5. Step 5: Solve for x
    x = 628,295,210,264.61/815,712.57
  6. Step 6: Final answer
    x = 770,240.93

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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.