Home / 1,424,131.90-1,965,253.08-812,482.66

Finding the Fourth Proportional to 1,424,131.90, 1,965,253.08 and 812,482.66

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Solution

The fourth proportional to 1,424,131.90, 1,965,253.08 and 812,482.66 is: 1,121,198.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,131.90 : 1,965,253.08 = 812,482.66 : x
  2. Step 2: Convert to fraction form
    1,424,131.90/1,965,253.08 = 812,482.66/x
  3. Step 3: Cross multiply
    1,424,131.90x = 1,965,253.08 × 812,482.66
  4. Step 4: Simplify right side
    1,424,131.90x = 1,596,734,050,011.59
  5. Step 5: Solve for x
    x = 1,596,734,050,011.59/1,424,131.90
  6. Step 6: Final answer
    x = 1,121,198.15

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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.