Home / 626,831.37-865,003.04-340,344.90

Finding the Fourth Proportional to 626,831.37, 865,003.04 and 340,344.90

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Solution

The fourth proportional to 626,831.37, 865,003.04 and 340,344.90 is: 469,662.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,831.37 : 865,003.04 = 340,344.90 : x
  2. Step 2: Convert to fraction form
    626,831.37/865,003.04 = 340,344.90/x
  3. Step 3: Cross multiply
    626,831.37x = 865,003.04 × 340,344.90
  4. Step 4: Simplify right side
    626,831.37x = 294,399,371,446.77
  5. Step 5: Solve for x
    x = 294,399,371,446.77/626,831.37
  6. Step 6: Final answer
    x = 469,662.79

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1.5x scale

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.