Home / 781,355.08-1,172,229.18-360,928.36

Finding the Fourth Proportional to 781,355.08, 1,172,229.18 and 360,928.36

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Solution

The fourth proportional to 781,355.08, 1,172,229.18 and 360,928.36 is: 541,483.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,355.08 : 1,172,229.18 = 360,928.36 : x
  2. Step 2: Convert to fraction form
    781,355.08/1,172,229.18 = 360,928.36/x
  3. Step 3: Cross multiply
    781,355.08x = 1,172,229.18 × 360,928.36
  4. Step 4: Simplify right side
    781,355.08x = 423,090,755,481.55
  5. Step 5: Solve for x
    x = 423,090,755,481.55/781,355.08
  6. Step 6: Final answer
    x = 541,483.34

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1.5x scale

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.