Home / 1,248,819.72-1,872,470.88-489,751.80

Finding the Fourth Proportional to 1,248,819.72, 1,872,470.88 and 489,751.80

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Solution

The fourth proportional to 1,248,819.72, 1,872,470.88 and 489,751.80 is: 734,330.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,819.72 : 1,872,470.88 = 489,751.80 : x
  2. Step 2: Convert to fraction form
    1,248,819.72/1,872,470.88 = 489,751.80/x
  3. Step 3: Cross multiply
    1,248,819.72x = 1,872,470.88 × 489,751.80
  4. Step 4: Simplify right side
    1,248,819.72x = 917,045,983,927.58
  5. Step 5: Solve for x
    x = 917,045,983,927.58/1,248,819.72
  6. Step 6: Final answer
    x = 734,330.16

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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.