Home / 1,585,640.29-2,188,185-860,488

Finding the Fourth Proportional to 1,585,640.29, 2,188,185 and 860,488

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Solution

The fourth proportional to 1,585,640.29, 2,188,185 and 860,488 is: 1,187,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,640.29 : 2,188,185 = 860,488 : x
  2. Step 2: Convert to fraction form
    1,585,640.29/2,188,185 = 860,488/x
  3. Step 3: Cross multiply
    1,585,640.29x = 2,188,185 × 860,488
  4. Step 4: Simplify right side
    1,585,640.29x = 1,882,906,934,280
  5. Step 5: Solve for x
    x = 1,882,906,934,280/1,585,640.29
  6. Step 6: Final answer
    x = 1,187,474.20

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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.