Home / 1,393,253.90-2,090,472.62-761,429.60

Finding the Fourth Proportional to 1,393,253.90, 2,090,472.62 and 761,429.60

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Solution

The fourth proportional to 1,393,253.90, 2,090,472.62 and 761,429.60 is: 1,142,467.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,253.90 : 2,090,472.62 = 761,429.60 : x
  2. Step 2: Convert to fraction form
    1,393,253.90/2,090,472.62 = 761,429.60/x
  3. Step 3: Cross multiply
    1,393,253.90x = 2,090,472.62 × 761,429.60
  4. Step 4: Simplify right side
    1,393,253.90x = 1,591,747,730,857.55
  5. Step 5: Solve for x
    x = 1,591,747,730,857.55/1,393,253.90
  6. Step 6: Final answer
    x = 1,142,467.81

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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.