Home / 877,757.12-1,316,500.86-278,640.44

Finding the Fourth Proportional to 877,757.12, 1,316,500.86 and 278,640.44

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Solution

The fourth proportional to 877,757.12, 1,316,500.86 and 278,640.44 is: 417,917.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,757.12 : 1,316,500.86 = 278,640.44 : x
  2. Step 2: Convert to fraction form
    877,757.12/1,316,500.86 = 278,640.44/x
  3. Step 3: Cross multiply
    877,757.12x = 1,316,500.86 × 278,640.44
  4. Step 4: Simplify right side
    877,757.12x = 366,830,378,890.78
  5. Step 5: Solve for x
    x = 366,830,378,890.78/877,757.12
  6. Step 6: Final answer
    x = 417,917.86

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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.