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Finding the Fourth Proportional to 528,524.68, 729,970.02 and 348,043.72

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Solution

The fourth proportional to 528,524.68, 729,970.02 and 348,043.72 is: 480,699.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,524.68 : 729,970.02 = 348,043.72 : x
  2. Step 2: Convert to fraction form
    528,524.68/729,970.02 = 348,043.72/x
  3. Step 3: Cross multiply
    528,524.68x = 729,970.02 × 348,043.72
  4. Step 4: Simplify right side
    528,524.68x = 254,061,481,249.27
  5. Step 5: Solve for x
    x = 254,061,481,249.27/528,524.68
  6. Step 6: Final answer
    x = 480,699.37

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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.