Home / 740,289.79-1,021,600.26-400,758.04

Finding the Fourth Proportional to 740,289.79, 1,021,600.26 and 400,758.04

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Solution

The fourth proportional to 740,289.79, 1,021,600.26 and 400,758.04 is: 553,046.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,289.79 : 1,021,600.26 = 400,758.04 : x
  2. Step 2: Convert to fraction form
    740,289.79/1,021,600.26 = 400,758.04/x
  3. Step 3: Cross multiply
    740,289.79x = 1,021,600.26 × 400,758.04
  4. Step 4: Simplify right side
    740,289.79x = 409,414,517,861.09
  5. Step 5: Solve for x
    x = 409,414,517,861.09/740,289.79
  6. Step 6: Final answer
    x = 553,046.28

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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.