Home / 786,619.30-1,180,815.90-520,898.80

Finding the Fourth Proportional to 786,619.30, 1,180,815.90 and 520,898.80

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Solution

The fourth proportional to 786,619.30, 1,180,815.90 and 520,898.80 is: 781,935.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,619.30 : 1,180,815.90 = 520,898.80 : x
  2. Step 2: Convert to fraction form
    786,619.30/1,180,815.90 = 520,898.80/x
  3. Step 3: Cross multiply
    786,619.30x = 1,180,815.90 × 520,898.80
  4. Step 4: Simplify right side
    786,619.30x = 615,085,585,330.92
  5. Step 5: Solve for x
    x = 615,085,585,330.92/786,619.30
  6. Step 6: Final answer
    x = 781,935.54

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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.