Home / 880,719.40-1,321,122.30-460,815.40

Finding the Fourth Proportional to 880,719.40, 1,321,122.30 and 460,815.40

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Solution

The fourth proportional to 880,719.40, 1,321,122.30 and 460,815.40 is: 691,245.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,719.40 : 1,321,122.30 = 460,815.40 : x
  2. Step 2: Convert to fraction form
    880,719.40/1,321,122.30 = 460,815.40/x
  3. Step 3: Cross multiply
    880,719.40x = 1,321,122.30 × 460,815.40
  4. Step 4: Simplify right side
    880,719.40x = 608,793,501,123.42
  5. Step 5: Solve for x
    x = 608,793,501,123.42/880,719.40
  6. Step 6: Final answer
    x = 691,245.70

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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.