Home / 1,109,647.68-1,531,313.28-626,314.20

Finding the Fourth Proportional to 1,109,647.68, 1,531,313.28 and 626,314.20

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Solution

The fourth proportional to 1,109,647.68, 1,531,313.28 and 626,314.20 is: 864,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,647.68 : 1,531,313.28 = 626,314.20 : x
  2. Step 2: Convert to fraction form
    1,109,647.68/1,531,313.28 = 626,314.20/x
  3. Step 3: Cross multiply
    1,109,647.68x = 1,531,313.28 × 626,314.20
  4. Step 4: Simplify right side
    1,109,647.68x = 959,083,251,912.58
  5. Step 5: Solve for x
    x = 959,083,251,912.58/1,109,647.68
  6. Step 6: Final answer
    x = 864,313.30

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Double scale
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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.