Home / 743,672.70-1,026,268.20-404,140.86

Finding the Fourth Proportional to 743,672.70, 1,026,268.20 and 404,140.86

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Solution

The fourth proportional to 743,672.70, 1,026,268.20 and 404,140.86 is: 557,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,672.70 : 1,026,268.20 = 404,140.86 : x
  2. Step 2: Convert to fraction form
    743,672.70/1,026,268.20 = 404,140.86/x
  3. Step 3: Cross multiply
    743,672.70x = 1,026,268.20 × 404,140.86
  4. Step 4: Simplify right side
    743,672.70x = 414,756,912,938.65
  5. Step 5: Solve for x
    x = 414,756,912,938.65/743,672.70
  6. Step 6: Final answer
    x = 557,714.32

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Double scale
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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.