Home / 808,831.20-1,214,230.95-409,266.30

Finding the Fourth Proportional to 808,831.20, 1,214,230.95 and 409,266.30

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Solution

The fourth proportional to 808,831.20, 1,214,230.95 and 409,266.30 is: 614,397.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,831.20 : 1,214,230.95 = 409,266.30 : x
  2. Step 2: Convert to fraction form
    808,831.20/1,214,230.95 = 409,266.30/x
  3. Step 3: Cross multiply
    808,831.20x = 1,214,230.95 × 409,266.30
  4. Step 4: Simplify right side
    808,831.20x = 496,943,808,251.99
  5. Step 5: Solve for x
    x = 496,943,808,251.99/808,831.20
  6. Step 6: Final answer
    x = 614,397.43

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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.