Home / 1,148,690.88-1,585,245.60-639,425.52

Finding the Fourth Proportional to 1,148,690.88, 1,585,245.60 and 639,425.52

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Solution

The fourth proportional to 1,148,690.88, 1,585,245.60 and 639,425.52 is: 882,436.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,690.88 : 1,585,245.60 = 639,425.52 : x
  2. Step 2: Convert to fraction form
    1,148,690.88/1,585,245.60 = 639,425.52/x
  3. Step 3: Cross multiply
    1,148,690.88x = 1,585,245.60 × 639,425.52
  4. Step 4: Simplify right side
    1,148,690.88x = 1,013,646,492,107.71
  5. Step 5: Solve for x
    x = 1,013,646,492,107.71/1,148,690.88
  6. Step 6: Final answer
    x = 882,436.27

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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.