Home / 1,309,900.32-1,807,662.15-729,110.91

Finding the Fourth Proportional to 1,309,900.32, 1,807,662.15 and 729,110.91

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Solution

The fourth proportional to 1,309,900.32, 1,807,662.15 and 729,110.91 is: 1,006,172.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,900.32 : 1,807,662.15 = 729,110.91 : x
  2. Step 2: Convert to fraction form
    1,309,900.32/1,807,662.15 = 729,110.91/x
  3. Step 3: Cross multiply
    1,309,900.32x = 1,807,662.15 × 729,110.91
  4. Step 4: Simplify right side
    1,309,900.32x = 1,317,986,195,159.06
  5. Step 5: Solve for x
    x = 1,317,986,195,159.06/1,309,900.32
  6. Step 6: Final answer
    x = 1,006,172.89

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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.