Home / 1,103,474.46-1,522,746.15-644,631.54

Finding the Fourth Proportional to 1,103,474.46, 1,522,746.15 and 644,631.54

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Solution

The fourth proportional to 1,103,474.46, 1,522,746.15 and 644,631.54 is: 889,563.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,474.46 : 1,522,746.15 = 644,631.54 : x
  2. Step 2: Convert to fraction form
    1,103,474.46/1,522,746.15 = 644,631.54/x
  3. Step 3: Cross multiply
    1,103,474.46x = 1,522,746.15 × 644,631.54
  4. Step 4: Simplify right side
    1,103,474.46x = 981,610,195,703.57
  5. Step 5: Solve for x
    x = 981,610,195,703.57/1,103,474.46
  6. Step 6: Final answer
    x = 889,563.13

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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.