Home / 739,831.32-1,020,857.73-449,291.79

Finding the Fourth Proportional to 739,831.32, 1,020,857.73 and 449,291.79

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Solution

The fourth proportional to 739,831.32, 1,020,857.73 and 449,291.79 is: 619,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,831.32 : 1,020,857.73 = 449,291.79 : x
  2. Step 2: Convert to fraction form
    739,831.32/1,020,857.73 = 449,291.79/x
  3. Step 3: Cross multiply
    739,831.32x = 1,020,857.73 × 449,291.79
  4. Step 4: Simplify right side
    739,831.32x = 458,662,996,847.04
  5. Step 5: Solve for x
    x = 458,662,996,847.04/739,831.32
  6. Step 6: Final answer
    x = 619,956.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.