Home / 925,643.52-1,388,495.52-318,425.58

Finding the Fourth Proportional to 925,643.52, 1,388,495.52 and 318,425.58

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Solution

The fourth proportional to 925,643.52, 1,388,495.52 and 318,425.58 is: 477,648.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,643.52 : 1,388,495.52 = 318,425.58 : x
  2. Step 2: Convert to fraction form
    925,643.52/1,388,495.52 = 318,425.58/x
  3. Step 3: Cross multiply
    925,643.52x = 1,388,495.52 × 318,425.58
  4. Step 4: Simplify right side
    925,643.52x = 442,132,491,283.40
  5. Step 5: Solve for x
    x = 442,132,491,283.40/925,643.52
  6. Step 6: Final answer
    x = 477,648.77

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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.