Home / 1,687,300.25-2,531,322.16-489,272.58

Finding the Fourth Proportional to 1,687,300.25, 2,531,322.16 and 489,272.58

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Solution

The fourth proportional to 1,687,300.25, 2,531,322.16 and 489,272.58 is: 734,016.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,300.25 : 2,531,322.16 = 489,272.58 : x
  2. Step 2: Convert to fraction form
    1,687,300.25/2,531,322.16 = 489,272.58/x
  3. Step 3: Cross multiply
    1,687,300.25x = 2,531,322.16 × 489,272.58
  4. Step 4: Simplify right side
    1,687,300.25x = 1,238,506,522,811.19
  5. Step 5: Solve for x
    x = 1,238,506,522,811.19/1,687,300.25
  6. Step 6: Final answer
    x = 734,016.68

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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.