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Finding the Fourth Proportional to 571,502.96, 857,397 and 403,351.76

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Solution

The fourth proportional to 571,502.96, 857,397 and 403,351.76 is: 605,128.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,502.96 : 857,397 = 403,351.76 : x
  2. Step 2: Convert to fraction form
    571,502.96/857,397 = 403,351.76/x
  3. Step 3: Cross multiply
    571,502.96x = 857,397 × 403,351.76
  4. Step 4: Simplify right side
    571,502.96x = 345,832,588,968.72
  5. Step 5: Solve for x
    x = 345,832,588,968.72/571,502.96
  6. Step 6: Final answer
    x = 605,128.26

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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.