Home / 1,248,687.65-1,872,273-489,619.69

Finding the Fourth Proportional to 1,248,687.65, 1,872,273 and 489,619.69

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Solution

The fourth proportional to 1,248,687.65, 1,872,273 and 489,619.69 is: 734,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,687.65 : 1,872,273 = 489,619.69 : x
  2. Step 2: Convert to fraction form
    1,248,687.65/1,872,273 = 489,619.69/x
  3. Step 3: Cross multiply
    1,248,687.65x = 1,872,273 × 489,619.69
  4. Step 4: Simplify right side
    1,248,687.65x = 916,701,725,855.37
  5. Step 5: Solve for x
    x = 916,701,725,855.37/1,248,687.65
  6. Step 6: Final answer
    x = 734,132.13

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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.