Home / 694,719.40-1,042,079.10-340,425.40

Finding the Fourth Proportional to 694,719.40, 1,042,079.10 and 340,425.40

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Solution

The fourth proportional to 694,719.40, 1,042,079.10 and 340,425.40 is: 510,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,719.40 : 1,042,079.10 = 340,425.40 : x
  2. Step 2: Convert to fraction form
    694,719.40/1,042,079.10 = 340,425.40/x
  3. Step 3: Cross multiply
    694,719.40x = 1,042,079.10 × 340,425.40
  4. Step 4: Simplify right side
    694,719.40x = 354,750,194,449.14
  5. Step 5: Solve for x
    x = 354,750,194,449.14/694,719.40
  6. Step 6: Final answer
    x = 510,638.10

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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.