Home / 1,290,655.56-1,934,719.66-722,314.20

Finding the Fourth Proportional to 1,290,655.56, 1,934,719.66 and 722,314.20

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Solution

The fourth proportional to 1,290,655.56, 1,934,719.66 and 722,314.20 is: 1,082,764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,655.56 : 1,934,719.66 = 722,314.20 : x
  2. Step 2: Convert to fraction form
    1,290,655.56/1,934,719.66 = 722,314.20/x
  3. Step 3: Cross multiply
    1,290,655.56x = 1,934,719.66 × 722,314.20
  4. Step 4: Simplify right side
    1,290,655.56x = 1,397,475,483,437.17
  5. Step 5: Solve for x
    x = 1,397,475,483,437.17/1,290,655.56
  6. Step 6: Final answer
    x = 1,082,764.08

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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.