Home / 920,425.20-1,379,341.80-731,209.20

Finding the Fourth Proportional to 920,425.20, 1,379,341.80 and 731,209.20

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Solution

The fourth proportional to 920,425.20, 1,379,341.80 and 731,209.20 is: 1,095,784.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,425.20 : 1,379,341.80 = 731,209.20 : x
  2. Step 2: Convert to fraction form
    920,425.20/1,379,341.80 = 731,209.20/x
  3. Step 3: Cross multiply
    920,425.20x = 1,379,341.80 × 731,209.20
  4. Step 4: Simplify right side
    920,425.20x = 1,008,587,414,104.56
  5. Step 5: Solve for x
    x = 1,008,587,414,104.56/920,425.20
  6. Step 6: Final answer
    x = 1,095,784.22

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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.