Home / 920,423.20-1,379,338.80-731,207.20

Finding the Fourth Proportional to 920,423.20, 1,379,338.80 and 731,207.20

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Solution

The fourth proportional to 920,423.20, 1,379,338.80 and 731,207.20 is: 1,095,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,423.20 : 1,379,338.80 = 731,207.20 : x
  2. Step 2: Convert to fraction form
    920,423.20/1,379,338.80 = 731,207.20/x
  3. Step 3: Cross multiply
    920,423.20x = 1,379,338.80 × 731,207.20
  4. Step 4: Simplify right side
    920,423.20x = 1,008,582,461,799.36
  5. Step 5: Solve for x
    x = 1,008,582,461,799.36/920,423.20
  6. Step 6: Final answer
    x = 1,095,781.23

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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.