Home / 790,786.60-1,186,266.30-765,903.40

Finding the Fourth Proportional to 790,786.60, 1,186,266.30 and 765,903.40

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Solution

The fourth proportional to 790,786.60, 1,186,266.30 and 765,903.40 is: 1,148,938.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,786.60 : 1,186,266.30 = 765,903.40 : x
  2. Step 2: Convert to fraction form
    790,786.60/1,186,266.30 = 765,903.40/x
  3. Step 3: Cross multiply
    790,786.60x = 1,186,266.30 × 765,903.40
  4. Step 4: Simplify right side
    790,786.60x = 908,565,392,475.42
  5. Step 5: Solve for x
    x = 908,565,392,475.42/790,786.60
  6. Step 6: Final answer
    x = 1,148,938.78

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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.