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Finding the Fourth Proportional to 571,401.36, 788,541 and 329,734.08

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Solution

The fourth proportional to 571,401.36, 788,541 and 329,734.08 is: 455,037.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,401.36 : 788,541 = 329,734.08 : x
  2. Step 2: Convert to fraction form
    571,401.36/788,541 = 329,734.08/x
  3. Step 3: Cross multiply
    571,401.36x = 788,541 × 329,734.08
  4. Step 4: Simplify right side
    571,401.36x = 260,008,841,177.28
  5. Step 5: Solve for x
    x = 260,008,841,177.28/571,401.36
  6. Step 6: Final answer
    x = 455,037.14

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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.