Home / 808,533.20-1,211,797.56-387,246.80

Finding the Fourth Proportional to 808,533.20, 1,211,797.56 and 387,246.80

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Solution

The fourth proportional to 808,533.20, 1,211,797.56 and 387,246.80 is: 580,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,533.20 : 1,211,797.56 = 387,246.80 : x
  2. Step 2: Convert to fraction form
    808,533.20/1,211,797.56 = 387,246.80/x
  3. Step 3: Cross multiply
    808,533.20x = 1,211,797.56 × 387,246.80
  4. Step 4: Simplify right side
    808,533.20x = 469,264,727,357.81
  5. Step 5: Solve for x
    x = 469,264,727,357.81/808,533.20
  6. Step 6: Final answer
    x = 580,390.18

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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.