Home / 820,326.89-1,132,288.67-476,240.11

Finding the Fourth Proportional to 820,326.89, 1,132,288.67 and 476,240.11

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Solution

The fourth proportional to 820,326.89, 1,132,288.67 and 476,240.11 is: 657,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,326.89 : 1,132,288.67 = 476,240.11 : x
  2. Step 2: Convert to fraction form
    820,326.89/1,132,288.67 = 476,240.11/x
  3. Step 3: Cross multiply
    820,326.89x = 1,132,288.67 × 476,240.11
  4. Step 4: Simplify right side
    820,326.89x = 539,241,279,112.43
  5. Step 5: Solve for x
    x = 539,241,279,112.43/820,326.89
  6. Step 6: Final answer
    x = 657,349.26

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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.