Home / 822,607.56-1,135,326.78-500,418.72

Finding the Fourth Proportional to 822,607.56, 1,135,326.78 and 500,418.72

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Solution

The fourth proportional to 822,607.56, 1,135,326.78 and 500,418.72 is: 690,655.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,607.56 : 1,135,326.78 = 500,418.72 : x
  2. Step 2: Convert to fraction form
    822,607.56/1,135,326.78 = 500,418.72/x
  3. Step 3: Cross multiply
    822,607.56x = 1,135,326.78 × 500,418.72
  4. Step 4: Simplify right side
    822,607.56x = 568,138,774,029.32
  5. Step 5: Solve for x
    x = 568,138,774,029.32/822,607.56
  6. Step 6: Final answer
    x = 690,655.91

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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.