Home / 743,719.28-1,026,293.26-421,433.24

Finding the Fourth Proportional to 743,719.28, 1,026,293.26 and 421,433.24

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Solution

The fourth proportional to 743,719.28, 1,026,293.26 and 421,433.24 is: 581,555.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,719.28 : 1,026,293.26 = 421,433.24 : x
  2. Step 2: Convert to fraction form
    743,719.28/1,026,293.26 = 421,433.24/x
  3. Step 3: Cross multiply
    743,719.28x = 1,026,293.26 × 421,433.24
  4. Step 4: Simplify right side
    743,719.28x = 432,514,093,751.96
  5. Step 5: Solve for x
    x = 432,514,093,751.96/743,719.28
  6. Step 6: Final answer
    x = 581,555.58

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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.