Home / 1,424,130.90-1,965,251.70-812,481.66

Finding the Fourth Proportional to 1,424,130.90, 1,965,251.70 and 812,481.66

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Solution

The fourth proportional to 1,424,130.90, 1,965,251.70 and 812,481.66 is: 1,121,196.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,130.90 : 1,965,251.70 = 812,481.66 : x
  2. Step 2: Convert to fraction form
    1,424,130.90/1,965,251.70 = 812,481.66/x
  3. Step 3: Cross multiply
    1,424,130.90x = 1,965,251.70 × 812,481.66
  4. Step 4: Simplify right side
    1,424,130.90x = 1,596,730,963,533.82
  5. Step 5: Solve for x
    x = 1,596,730,963,533.82/1,424,130.90
  6. Step 6: Final answer
    x = 1,121,196.77

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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.