Home / 759,740.31-1,048,371.17-420,201.27

Finding the Fourth Proportional to 759,740.31, 1,048,371.17 and 420,201.27

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Solution

The fourth proportional to 759,740.31, 1,048,371.17 and 420,201.27 is: 579,838.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,740.31 : 1,048,371.17 = 420,201.27 : x
  2. Step 2: Convert to fraction form
    759,740.31/1,048,371.17 = 420,201.27/x
  3. Step 3: Cross multiply
    759,740.31x = 1,048,371.17 × 420,201.27
  4. Step 4: Simplify right side
    759,740.31x = 440,526,894,964.38
  5. Step 5: Solve for x
    x = 440,526,894,964.38/759,740.31
  6. Step 6: Final answer
    x = 579,838.78

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1.5x scale

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.