Home / 786,918.70-1,180,378.05-769,422.70

Finding the Fourth Proportional to 786,918.70, 1,180,378.05 and 769,422.70

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Solution

The fourth proportional to 786,918.70, 1,180,378.05 and 769,422.70 is: 1,154,134.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,918.70 : 1,180,378.05 = 769,422.70 : x
  2. Step 2: Convert to fraction form
    786,918.70/1,180,378.05 = 769,422.70/x
  3. Step 3: Cross multiply
    786,918.70x = 1,180,378.05 × 769,422.70
  4. Step 4: Simplify right side
    786,918.70x = 908,209,666,251.74
  5. Step 5: Solve for x
    x = 908,209,666,251.74/786,918.70
  6. Step 6: Final answer
    x = 1,154,134.05

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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.