Home / 912,005.20-1,368,007.80-538,757.20

Finding the Fourth Proportional to 912,005.20, 1,368,007.80 and 538,757.20

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Solution

The fourth proportional to 912,005.20, 1,368,007.80 and 538,757.20 is: 808,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,005.20 : 1,368,007.80 = 538,757.20 : x
  2. Step 2: Convert to fraction form
    912,005.20/1,368,007.80 = 538,757.20/x
  3. Step 3: Cross multiply
    912,005.20x = 1,368,007.80 × 538,757.20
  4. Step 4: Simplify right side
    912,005.20x = 737,024,051,906.16
  5. Step 5: Solve for x
    x = 737,024,051,906.16/912,005.20
  6. Step 6: Final answer
    x = 808,135.80

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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.