Home / 858,717.92-1,288,111.52-219,038.24

Finding the Fourth Proportional to 858,717.92, 1,288,111.52 and 219,038.24

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Solution

The fourth proportional to 858,717.92, 1,288,111.52 and 219,038.24 is: 328,566.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,717.92 : 1,288,111.52 = 219,038.24 : x
  2. Step 2: Convert to fraction form
    858,717.92/1,288,111.52 = 219,038.24/x
  3. Step 3: Cross multiply
    858,717.92x = 1,288,111.52 × 219,038.24
  4. Step 4: Simplify right side
    858,717.92x = 282,145,680,264.53
  5. Step 5: Solve for x
    x = 282,145,680,264.53/858,717.92
  6. Step 6: Final answer
    x = 328,566.20

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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.