Home / 1,243,612.20-1,865,418.30-445,276.20

Finding the Fourth Proportional to 1,243,612.20, 1,865,418.30 and 445,276.20

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Solution

The fourth proportional to 1,243,612.20, 1,865,418.30 and 445,276.20 is: 667,914.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,612.20 : 1,865,418.30 = 445,276.20 : x
  2. Step 2: Convert to fraction form
    1,243,612.20/1,865,418.30 = 445,276.20/x
  3. Step 3: Cross multiply
    1,243,612.20x = 1,865,418.30 × 445,276.20
  4. Step 4: Simplify right side
    1,243,612.20x = 830,626,372,034.46
  5. Step 5: Solve for x
    x = 830,626,372,034.46/1,243,612.20
  6. Step 6: Final answer
    x = 667,914.30

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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.