Home / 825,085.98-1,138,666.55-462,626.51

Finding the Fourth Proportional to 825,085.98, 1,138,666.55 and 462,626.51

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Solution

The fourth proportional to 825,085.98, 1,138,666.55 and 462,626.51 is: 638,451.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,085.98 : 1,138,666.55 = 462,626.51 : x
  2. Step 2: Convert to fraction form
    825,085.98/1,138,666.55 = 462,626.51/x
  3. Step 3: Cross multiply
    825,085.98x = 1,138,666.55 × 462,626.51
  4. Step 4: Simplify right side
    825,085.98x = 526,777,324,073.78
  5. Step 5: Solve for x
    x = 526,777,324,073.78/825,085.98
  6. Step 6: Final answer
    x = 638,451.43

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Double scale
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Similar ratio
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1.5x scale

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.