Home / 1,109,836.20-1,531,579.30-626,421.80

Finding the Fourth Proportional to 1,109,836.20, 1,531,579.30 and 626,421.80

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Solution

The fourth proportional to 1,109,836.20, 1,531,579.30 and 626,421.80 is: 864,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,836.20 : 1,531,579.30 = 626,421.80 : x
  2. Step 2: Convert to fraction form
    1,109,836.20/1,531,579.30 = 626,421.80/x
  3. Step 3: Cross multiply
    1,109,836.20x = 1,531,579.30 × 626,421.80
  4. Step 4: Simplify right side
    1,109,836.20x = 959,414,661,948.74
  5. Step 5: Solve for x
    x = 959,414,661,948.74/1,109,836.20
  6. Step 6: Final answer
    x = 864,465.10

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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.