Home / 742,640.58-1,024,837.38-403,108.56

Finding the Fourth Proportional to 742,640.58, 1,024,837.38 and 403,108.56

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Solution

The fourth proportional to 742,640.58, 1,024,837.38 and 403,108.56 is: 556,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,640.58 : 1,024,837.38 = 403,108.56 : x
  2. Step 2: Convert to fraction form
    742,640.58/1,024,837.38 = 403,108.56/x
  3. Step 3: Cross multiply
    742,640.58x = 1,024,837.38 × 403,108.56
  4. Step 4: Simplify right side
    742,640.58x = 413,120,720,485.97
  5. Step 5: Solve for x
    x = 413,120,720,485.97/742,640.58
  6. Step 6: Final answer
    x = 556,286.22

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Double scale
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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.