Home / 517,831.20-776,772.40-268,999.20

Finding the Fourth Proportional to 517,831.20, 776,772.40 and 268,999.20

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Solution

The fourth proportional to 517,831.20, 776,772.40 and 268,999.20 is: 403,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,831.20 : 776,772.40 = 268,999.20 : x
  2. Step 2: Convert to fraction form
    517,831.20/776,772.40 = 268,999.20/x
  3. Step 3: Cross multiply
    517,831.20x = 776,772.40 × 268,999.20
  4. Step 4: Simplify right side
    517,831.20x = 208,951,154,182.08
  5. Step 5: Solve for x
    x = 208,951,154,182.08/517,831.20
  6. Step 6: Final answer
    x = 403,512.10

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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.