Home / 5,287,939.20-7,931,908.80-1,298,851.20

Finding the Fourth Proportional to 5,287,939.20, 7,931,908.80 and 1,298,851.20

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Solution

The fourth proportional to 5,287,939.20, 7,931,908.80 and 1,298,851.20 is: 1,948,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287,939.20 : 7,931,908.80 = 1,298,851.20 : x
  2. Step 2: Convert to fraction form
    5,287,939.20/7,931,908.80 = 1,298,851.20/x
  3. Step 3: Cross multiply
    5,287,939.20x = 7,931,908.80 × 1,298,851.20
  4. Step 4: Simplify right side
    5,287,939.20x = 10,302,369,263,170.56
  5. Step 5: Solve for x
    x = 10,302,369,263,170.56/5,287,939.20
  6. Step 6: Final answer
    x = 1,948,276.80

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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.