Home / 727,772.80-1,091,659.20-657,788.80

Finding the Fourth Proportional to 727,772.80, 1,091,659.20 and 657,788.80

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Solution

The fourth proportional to 727,772.80, 1,091,659.20 and 657,788.80 is: 986,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,772.80 : 1,091,659.20 = 657,788.80 : x
  2. Step 2: Convert to fraction form
    727,772.80/1,091,659.20 = 657,788.80/x
  3. Step 3: Cross multiply
    727,772.80x = 1,091,659.20 × 657,788.80
  4. Step 4: Simplify right side
    727,772.80x = 718,081,195,176.96
  5. Step 5: Solve for x
    x = 718,081,195,176.96/727,772.80
  6. Step 6: Final answer
    x = 986,683.20

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1.5x scale

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.