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Finding the Fourth Proportional to 528,993.17, 730,508.59 and 368,287.55

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Solution

The fourth proportional to 528,993.17, 730,508.59 and 368,287.55 is: 508,583.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,993.17 : 730,508.59 = 368,287.55 : x
  2. Step 2: Convert to fraction form
    528,993.17/730,508.59 = 368,287.55/x
  3. Step 3: Cross multiply
    528,993.17x = 730,508.59 × 368,287.55
  4. Step 4: Simplify right side
    528,993.17x = 269,037,218,865.05
  5. Step 5: Solve for x
    x = 269,037,218,865.05/528,993.17
  6. Step 6: Final answer
    x = 508,583.54

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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.