Home / 815,904.30-1,223,856.45-216,957.90

Finding the Fourth Proportional to 815,904.30, 1,223,856.45 and 216,957.90

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Solution

The fourth proportional to 815,904.30, 1,223,856.45 and 216,957.90 is: 325,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,904.30 : 1,223,856.45 = 216,957.90 : x
  2. Step 2: Convert to fraction form
    815,904.30/1,223,856.45 = 216,957.90/x
  3. Step 3: Cross multiply
    815,904.30x = 1,223,856.45 × 216,957.90
  4. Step 4: Simplify right side
    815,904.30x = 265,525,325,293.46
  5. Step 5: Solve for x
    x = 265,525,325,293.46/815,904.30
  6. Step 6: Final answer
    x = 325,436.85

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Double scale
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Similar ratio
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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.