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Finding the Fourth Proportional to 579,759, 869,628.24 and 238,128.46

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Solution

The fourth proportional to 579,759, 869,628.24 and 238,128.46 is: 357,188.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,759 : 869,628.24 = 238,128.46 : x
  2. Step 2: Convert to fraction form
    579,759/869,628.24 = 238,128.46/x
  3. Step 3: Cross multiply
    579,759x = 869,628.24 × 238,128.46
  4. Step 4: Simplify right side
    579,759x = 207,083,233,563.71
  5. Step 5: Solve for x
    x = 207,083,233,563.71/579,759
  6. Step 6: Final answer
    x = 357,188.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.