Home / 740,031.20-1,109,560.80-290,481.20

Finding the Fourth Proportional to 740,031.20, 1,109,560.80 and 290,481.20

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Solution

The fourth proportional to 740,031.20, 1,109,560.80 and 290,481.20 is: 435,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,031.20 : 1,109,560.80 = 290,481.20 : x
  2. Step 2: Convert to fraction form
    740,031.20/1,109,560.80 = 290,481.20/x
  3. Step 3: Cross multiply
    740,031.20x = 1,109,560.80 × 290,481.20
  4. Step 4: Simplify right side
    740,031.20x = 322,306,552,656.96
  5. Step 5: Solve for x
    x = 322,306,552,656.96/740,031.20
  6. Step 6: Final answer
    x = 435,531.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.