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Finding the Fourth Proportional to 519,782.76, 717,300.09 and 293,428.26

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Solution

The fourth proportional to 519,782.76, 717,300.09 and 293,428.26 is: 404,930.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,782.76 : 717,300.09 = 293,428.26 : x
  2. Step 2: Convert to fraction form
    519,782.76/717,300.09 = 293,428.26/x
  3. Step 3: Cross multiply
    519,782.76x = 717,300.09 × 293,428.26
  4. Step 4: Simplify right side
    519,782.76x = 210,476,117,306.54
  5. Step 5: Solve for x
    x = 210,476,117,306.54/519,782.76
  6. Step 6: Final answer
    x = 404,930.93

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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.