Home / 743,042.76-1,025,371.62-403,503.72

Finding the Fourth Proportional to 743,042.76, 1,025,371.62 and 403,503.72

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Solution

The fourth proportional to 743,042.76, 1,025,371.62 and 403,503.72 is: 556,820.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,042.76 : 1,025,371.62 = 403,503.72 : x
  2. Step 2: Convert to fraction form
    743,042.76/1,025,371.62 = 403,503.72/x
  3. Step 3: Cross multiply
    743,042.76x = 1,025,371.62 × 403,503.72
  4. Step 4: Simplify right side
    743,042.76x = 413,741,263,052.43
  5. Step 5: Solve for x
    x = 413,741,263,052.43/743,042.76
  6. Step 6: Final answer
    x = 556,820.26

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.