Home / 1,290,654.56-1,934,718.16-722,313.20

Finding the Fourth Proportional to 1,290,654.56, 1,934,718.16 and 722,313.20

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Solution

The fourth proportional to 1,290,654.56, 1,934,718.16 and 722,313.20 is: 1,082,762.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,654.56 : 1,934,718.16 = 722,313.20 : x
  2. Step 2: Convert to fraction form
    1,290,654.56/1,934,718.16 = 722,313.20/x
  3. Step 3: Cross multiply
    1,290,654.56x = 1,934,718.16 × 722,313.20
  4. Step 4: Simplify right side
    1,290,654.56x = 1,397,472,465,247.71
  5. Step 5: Solve for x
    x = 1,397,472,465,247.71/1,290,654.56
  6. Step 6: Final answer
    x = 1,082,762.58

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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.