Home / 740,041.20-1,109,575.80-290,491.20

Finding the Fourth Proportional to 740,041.20, 1,109,575.80 and 290,491.20

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Solution

The fourth proportional to 740,041.20, 1,109,575.80 and 290,491.20 is: 435,546.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,041.20 : 1,109,575.80 = 290,491.20 : x
  2. Step 2: Convert to fraction form
    740,041.20/1,109,575.80 = 290,491.20/x
  3. Step 3: Cross multiply
    740,041.20x = 1,109,575.80 × 290,491.20
  4. Step 4: Simplify right side
    740,041.20x = 322,322,005,632.96
  5. Step 5: Solve for x
    x = 322,322,005,632.96/740,041.20
  6. Step 6: Final answer
    x = 435,546.03

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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.