Home / 786,940.20-1,178,660.70-608,869.80

Finding the Fourth Proportional to 786,940.20, 1,178,660.70 and 608,869.80

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Solution

The fourth proportional to 786,940.20, 1,178,660.70 and 608,869.80 is: 911,951.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,940.20 : 1,178,660.70 = 608,869.80 : x
  2. Step 2: Convert to fraction form
    786,940.20/1,178,660.70 = 608,869.80/x
  3. Step 3: Cross multiply
    786,940.20x = 1,178,660.70 × 608,869.80
  4. Step 4: Simplify right side
    786,940.20x = 717,650,904,676.86
  5. Step 5: Solve for x
    x = 717,650,904,676.86/786,940.20
  6. Step 6: Final answer
    x = 911,951.00

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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.