Home / 817,429.12-1,226,129.37-367,831.78

Finding the Fourth Proportional to 817,429.12, 1,226,129.37 and 367,831.78

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Solution

The fourth proportional to 817,429.12, 1,226,129.37 and 367,831.78 is: 551,741.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,429.12 : 1,226,129.37 = 367,831.78 : x
  2. Step 2: Convert to fraction form
    817,429.12/1,226,129.37 = 367,831.78/x
  3. Step 3: Cross multiply
    817,429.12x = 1,226,129.37 × 367,831.78
  4. Step 4: Simplify right side
    817,429.12x = 451,009,348,677.38
  5. Step 5: Solve for x
    x = 451,009,348,677.38/817,429.12
  6. Step 6: Final answer
    x = 551,741.23

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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.