Home / 740,419.85-1,109,790.17-340,233.71

Finding the Fourth Proportional to 740,419.85, 1,109,790.17 and 340,233.71

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Solution

The fourth proportional to 740,419.85, 1,109,790.17 and 340,233.71 is: 509,964.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,419.85 : 1,109,790.17 = 340,233.71 : x
  2. Step 2: Convert to fraction form
    740,419.85/1,109,790.17 = 340,233.71/x
  3. Step 3: Cross multiply
    740,419.85x = 1,109,790.17 × 340,233.71
  4. Step 4: Simplify right side
    740,419.85x = 377,588,022,162.26
  5. Step 5: Solve for x
    x = 377,588,022,162.26/740,419.85
  6. Step 6: Final answer
    x = 509,964.75

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Double scale
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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.