Home / 724,643.40-1,086,576.30-303,443.40

Finding the Fourth Proportional to 724,643.40, 1,086,576.30 and 303,443.40

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Solution

The fourth proportional to 724,643.40, 1,086,576.30 and 303,443.40 is: 455,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,643.40 : 1,086,576.30 = 303,443.40 : x
  2. Step 2: Convert to fraction form
    724,643.40/1,086,576.30 = 303,443.40/x
  3. Step 3: Cross multiply
    724,643.40x = 1,086,576.30 × 303,443.40
  4. Step 4: Simplify right side
    724,643.40x = 329,714,406,831.42
  5. Step 5: Solve for x
    x = 329,714,406,831.42/724,643.40
  6. Step 6: Final answer
    x = 455,002.29

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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.