Home / 1,687,300.12-2,531,321.97-489,272.46

Finding the Fourth Proportional to 1,687,300.12, 2,531,321.97 and 489,272.46

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Solution

The fourth proportional to 1,687,300.12, 2,531,321.97 and 489,272.46 is: 734,016.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,300.12 : 2,531,321.97 = 489,272.46 : x
  2. Step 2: Convert to fraction form
    1,687,300.12/2,531,321.97 = 489,272.46/x
  3. Step 3: Cross multiply
    1,687,300.12x = 2,531,321.97 × 489,272.46
  4. Step 4: Simplify right side
    1,687,300.12x = 1,238,506,127,313.95
  5. Step 5: Solve for x
    x = 1,238,506,127,313.95/1,687,300.12
  6. Step 6: Final answer
    x = 734,016.50

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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.