Home / 744,143.85-1,027,061.10-421,855.20

Finding the Fourth Proportional to 744,143.85, 1,027,061.10 and 421,855.20

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Solution

The fourth proportional to 744,143.85, 1,027,061.10 and 421,855.20 is: 582,241.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,143.85 : 1,027,061.10 = 421,855.20 : x
  2. Step 2: Convert to fraction form
    744,143.85/1,027,061.10 = 421,855.20/x
  3. Step 3: Cross multiply
    744,143.85x = 1,027,061.10 × 421,855.20
  4. Step 4: Simplify right side
    744,143.85x = 433,271,065,752.72
  5. Step 5: Solve for x
    x = 433,271,065,752.72/744,143.85
  6. Step 6: Final answer
    x = 582,241.01

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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.