Home / 579,739.84-799,672.80-418,831.36

Finding the Fourth Proportional to 579,739.84, 799,672.80 and 418,831.36

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Solution

The fourth proportional to 579,739.84, 799,672.80 and 418,831.36 is: 577,721.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,739.84 : 799,672.80 = 418,831.36 : x
  2. Step 2: Convert to fraction form
    579,739.84/799,672.80 = 418,831.36/x
  3. Step 3: Cross multiply
    579,739.84x = 799,672.80 × 418,831.36
  4. Step 4: Simplify right side
    579,739.84x = 334,928,046,379.01
  5. Step 5: Solve for x
    x = 334,928,046,379.01/579,739.84
  6. Step 6: Final answer
    x = 577,721.29

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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.