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Finding the Fourth Proportional to 528,563.40, 729,056.19 and 337,490.61

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Solution

The fourth proportional to 528,563.40, 729,056.19 and 337,490.61 is: 465,506.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,563.40 : 729,056.19 = 337,490.61 : x
  2. Step 2: Convert to fraction form
    528,563.40/729,056.19 = 337,490.61/x
  3. Step 3: Cross multiply
    528,563.40x = 729,056.19 × 337,490.61
  4. Step 4: Simplify right side
    528,563.40x = 246,049,618,287.38
  5. Step 5: Solve for x
    x = 246,049,618,287.38/528,563.40
  6. Step 6: Final answer
    x = 465,506.35

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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.