Home / 786,917.70-1,180,376.55-769,421.70

Finding the Fourth Proportional to 786,917.70, 1,180,376.55 and 769,421.70

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Solution

The fourth proportional to 786,917.70, 1,180,376.55 and 769,421.70 is: 1,154,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,917.70 : 1,180,376.55 = 769,421.70 : x
  2. Step 2: Convert to fraction form
    786,917.70/1,180,376.55 = 769,421.70/x
  3. Step 3: Cross multiply
    786,917.70x = 1,180,376.55 × 769,421.70
  4. Step 4: Simplify right side
    786,917.70x = 908,207,331,741.14
  5. Step 5: Solve for x
    x = 908,207,331,741.14/786,917.70
  6. Step 6: Final answer
    x = 1,154,132.55

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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.