Home / 807,442.62-1,114,187.31-497,295.78

Finding the Fourth Proportional to 807,442.62, 1,114,187.31 and 497,295.78

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Solution

The fourth proportional to 807,442.62, 1,114,187.31 and 497,295.78 is: 686,216.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,442.62 : 1,114,187.31 = 497,295.78 : x
  2. Step 2: Convert to fraction form
    807,442.62/1,114,187.31 = 497,295.78/x
  3. Step 3: Cross multiply
    807,442.62x = 1,114,187.31 × 497,295.78
  4. Step 4: Simplify right side
    807,442.62x = 554,080,647,392.55
  5. Step 5: Solve for x
    x = 554,080,647,392.55/807,442.62
  6. Step 6: Final answer
    x = 686,216.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.