Home / 815,886.68-1,223,645.54-310,267.46

Finding the Fourth Proportional to 815,886.68, 1,223,645.54 and 310,267.46

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Solution

The fourth proportional to 815,886.68, 1,223,645.54 and 310,267.46 is: 465,331.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,886.68 : 1,223,645.54 = 310,267.46 : x
  2. Step 2: Convert to fraction form
    815,886.68/1,223,645.54 = 310,267.46/x
  3. Step 3: Cross multiply
    815,886.68x = 1,223,645.54 × 310,267.46
  4. Step 4: Simplify right side
    815,886.68x = 379,657,395,143.91
  5. Step 5: Solve for x
    x = 379,657,395,143.91/815,886.68
  6. Step 6: Final answer
    x = 465,331.04

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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.