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Finding the Fourth Proportional to 571,339.68, 788,495.52 and 316,773.12

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Solution

The fourth proportional to 571,339.68, 788,495.52 and 316,773.12 is: 437,172.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,339.68 : 788,495.52 = 316,773.12 : x
  2. Step 2: Convert to fraction form
    571,339.68/788,495.52 = 316,773.12/x
  3. Step 3: Cross multiply
    571,339.68x = 788,495.52 × 316,773.12
  4. Step 4: Simplify right side
    571,339.68x = 249,774,185,976.42
  5. Step 5: Solve for x
    x = 249,774,185,976.42/571,339.68
  6. Step 6: Final answer
    x = 437,172.83

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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.