Home / 1,282,858.65-1,770,224.67-766,509.72

Finding the Fourth Proportional to 1,282,858.65, 1,770,224.67 and 766,509.72

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Solution

The fourth proportional to 1,282,858.65, 1,770,224.67 and 766,509.72 is: 1,057,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,858.65 : 1,770,224.67 = 766,509.72 : x
  2. Step 2: Convert to fraction form
    1,282,858.65/1,770,224.67 = 766,509.72/x
  3. Step 3: Cross multiply
    1,282,858.65x = 1,770,224.67 × 766,509.72
  4. Step 4: Simplify right side
    1,282,858.65x = 1,356,894,416,138.79
  5. Step 5: Solve for x
    x = 1,356,894,416,138.79/1,282,858.65
  6. Step 6: Final answer
    x = 1,057,711.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.