Home / 820,326.80-1,230,490.20-731,853.20

Finding the Fourth Proportional to 820,326.80, 1,230,490.20 and 731,853.20

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Solution

The fourth proportional to 820,326.80, 1,230,490.20 and 731,853.20 is: 1,097,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,326.80 : 1,230,490.20 = 731,853.20 : x
  2. Step 2: Convert to fraction form
    820,326.80/1,230,490.20 = 731,853.20/x
  3. Step 3: Cross multiply
    820,326.80x = 1,230,490.20 × 731,853.20
  4. Step 4: Simplify right side
    820,326.80x = 900,538,190,438.64
  5. Step 5: Solve for x
    x = 900,538,190,438.64/820,326.80
  6. Step 6: Final answer
    x = 1,097,779.80

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1.5x scale

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.