Home / 744,247.75-1,027,030.88-421,979.62

Finding the Fourth Proportional to 744,247.75, 1,027,030.88 and 421,979.62

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Solution

The fourth proportional to 744,247.75, 1,027,030.88 and 421,979.62 is: 582,314.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,247.75 : 1,027,030.88 = 421,979.62 : x
  2. Step 2: Convert to fraction form
    744,247.75/1,027,030.88 = 421,979.62/x
  3. Step 3: Cross multiply
    744,247.75x = 1,027,030.88 × 421,979.62
  4. Step 4: Simplify right side
    744,247.75x = 433,386,098,360.77
  5. Step 5: Solve for x
    x = 433,386,098,360.77/744,247.75
  6. Step 6: Final answer
    x = 582,314.29

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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.