Home / 1,148,639.24-1,585,086.90-639,328.52

Finding the Fourth Proportional to 1,148,639.24, 1,585,086.90 and 639,328.52

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Solution

The fourth proportional to 1,148,639.24, 1,585,086.90 and 639,328.52 is: 882,253.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,639.24 : 1,585,086.90 = 639,328.52 : x
  2. Step 2: Convert to fraction form
    1,148,639.24/1,585,086.90 = 639,328.52/x
  3. Step 3: Cross multiply
    1,148,639.24x = 1,585,086.90 × 639,328.52
  4. Step 4: Simplify right side
    1,148,639.24x = 1,013,391,261,848.39
  5. Step 5: Solve for x
    x = 1,013,391,261,848.39/1,148,639.24
  6. Step 6: Final answer
    x = 882,253.74

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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.