Home / 808,831.80-1,214,246.10-509,311.80

Finding the Fourth Proportional to 808,831.80, 1,214,246.10 and 509,311.80

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Solution

The fourth proportional to 808,831.80, 1,214,246.10 and 509,311.80 is: 764,596.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,831.80 : 1,214,246.10 = 509,311.80 : x
  2. Step 2: Convert to fraction form
    808,831.80/1,214,246.10 = 509,311.80/x
  3. Step 3: Cross multiply
    808,831.80x = 1,214,246.10 × 509,311.80
  4. Step 4: Simplify right side
    808,831.80x = 618,429,866,833.98
  5. Step 5: Solve for x
    x = 618,429,866,833.98/808,831.80
  6. Step 6: Final answer
    x = 764,596.38

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1.5x scale

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.