Home / 1,301,255.79-1,795,789.07-720,478.87

Finding the Fourth Proportional to 1,301,255.79, 1,795,789.07 and 720,478.87

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Solution

The fourth proportional to 1,301,255.79, 1,795,789.07 and 720,478.87 is: 994,291.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,255.79 : 1,795,789.07 = 720,478.87 : x
  2. Step 2: Convert to fraction form
    1,301,255.79/1,795,789.07 = 720,478.87/x
  3. Step 3: Cross multiply
    1,301,255.79x = 1,795,789.07 × 720,478.87
  4. Step 4: Simplify right side
    1,301,255.79x = 1,293,828,074,521.88
  5. Step 5: Solve for x
    x = 1,293,828,074,521.88/1,301,255.79
  6. Step 6: Final answer
    x = 994,291.89

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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.