Home / 928,287.80-1,392,528.90-395,865.08

Finding the Fourth Proportional to 928,287.80, 1,392,528.90 and 395,865.08

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Solution

The fourth proportional to 928,287.80, 1,392,528.90 and 395,865.08 is: 593,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,287.80 : 1,392,528.90 = 395,865.08 : x
  2. Step 2: Convert to fraction form
    928,287.80/1,392,528.90 = 395,865.08/x
  3. Step 3: Cross multiply
    928,287.80x = 1,392,528.90 × 395,865.08
  4. Step 4: Simplify right side
    928,287.80x = 551,253,564,400.81
  5. Step 5: Solve for x
    x = 551,253,564,400.81/928,287.80
  6. Step 6: Final answer
    x = 593,839.07

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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.