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Finding the Fourth Proportional to 571,609.74, 788,764.59 and 329,970.17

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Solution

The fourth proportional to 571,609.74, 788,764.59 and 329,970.17 is: 455,326.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,609.74 : 788,764.59 = 329,970.17 : x
  2. Step 2: Convert to fraction form
    571,609.74/788,764.59 = 329,970.17/x
  3. Step 3: Cross multiply
    571,609.74x = 788,764.59 × 329,970.17
  4. Step 4: Simplify right side
    571,609.74x = 260,268,781,908.46
  5. Step 5: Solve for x
    x = 260,268,781,908.46/571,609.74
  6. Step 6: Final answer
    x = 455,326.01

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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.