Home / 572,719.40-859,079.10-198,742.40

Finding the Fourth Proportional to 572,719.40, 859,079.10 and 198,742.40

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Solution

The fourth proportional to 572,719.40, 859,079.10 and 198,742.40 is: 298,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,719.40 : 859,079.10 = 198,742.40 : x
  2. Step 2: Convert to fraction form
    572,719.40/859,079.10 = 198,742.40/x
  3. Step 3: Cross multiply
    572,719.40x = 859,079.10 × 198,742.40
  4. Step 4: Simplify right side
    572,719.40x = 170,735,442,123.84
  5. Step 5: Solve for x
    x = 170,735,442,123.84/572,719.40
  6. Step 6: Final answer
    x = 298,113.60

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Double scale
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Similar ratio
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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.