Home / 1,242,210.20-1,859,378.70-887,916.20

Finding the Fourth Proportional to 1,242,210.20, 1,859,378.70 and 887,916.20

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Solution

The fourth proportional to 1,242,210.20, 1,859,378.70 and 887,916.20 is: 1,329,060.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,210.20 : 1,859,378.70 = 887,916.20 : x
  2. Step 2: Convert to fraction form
    1,242,210.20/1,859,378.70 = 887,916.20/x
  3. Step 3: Cross multiply
    1,242,210.20x = 1,859,378.70 × 887,916.20
  4. Step 4: Simplify right side
    1,242,210.20x = 1,650,972,469,664.94
  5. Step 5: Solve for x
    x = 1,650,972,469,664.94/1,242,210.20
  6. Step 6: Final answer
    x = 1,329,060.47

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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.