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Finding the Fourth Proportional to 571,645.72, 788,646.07 and 329,881.58

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Solution

The fourth proportional to 571,645.72, 788,646.07 and 329,881.58 is: 455,106.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,645.72 : 788,646.07 = 329,881.58 : x
  2. Step 2: Convert to fraction form
    571,645.72/788,646.07 = 329,881.58/x
  3. Step 3: Cross multiply
    571,645.72x = 788,646.07 × 329,881.58
  4. Step 4: Simplify right side
    571,645.72x = 260,159,811,058.94
  5. Step 5: Solve for x
    x = 260,159,811,058.94/571,645.72
  6. Step 6: Final answer
    x = 455,106.72

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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.