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Finding the Fourth Proportional to 530,490.96, 732,408.28 and 369,287.28

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Solution

The fourth proportional to 530,490.96, 732,408.28 and 369,287.28 is: 509,846.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,490.96 : 732,408.28 = 369,287.28 : x
  2. Step 2: Convert to fraction form
    530,490.96/732,408.28 = 369,287.28/x
  3. Step 3: Cross multiply
    530,490.96x = 732,408.28 × 369,287.28
  4. Step 4: Simplify right side
    530,490.96x = 270,469,061,570.68
  5. Step 5: Solve for x
    x = 270,469,061,570.68/530,490.96
  6. Step 6: Final answer
    x = 509,846.69

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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.