Home / 902,831.16-1,245,996.10-515,704.42

Finding the Fourth Proportional to 902,831.16, 1,245,996.10 and 515,704.42

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Solution

The fourth proportional to 902,831.16, 1,245,996.10 and 515,704.42 is: 711,722.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,831.16 : 1,245,996.10 = 515,704.42 : x
  2. Step 2: Convert to fraction form
    902,831.16/1,245,996.10 = 515,704.42/x
  3. Step 3: Cross multiply
    902,831.16x = 1,245,996.10 × 515,704.42
  4. Step 4: Simplify right side
    902,831.16x = 642,565,696,072.76
  5. Step 5: Solve for x
    x = 642,565,696,072.76/902,831.16
  6. Step 6: Final answer
    x = 711,722.99

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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.