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Finding the Fourth Proportional to 530,878.40, 732,762.72 and 349,722.56

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Solution

The fourth proportional to 530,878.40, 732,762.72 and 349,722.56 is: 482,716.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,878.40 : 732,762.72 = 349,722.56 : x
  2. Step 2: Convert to fraction form
    530,878.40/732,762.72 = 349,722.56/x
  3. Step 3: Cross multiply
    530,878.40x = 732,762.72 × 349,722.56
  4. Step 4: Simplify right side
    530,878.40x = 256,263,654,310.96
  5. Step 5: Solve for x
    x = 256,263,654,310.96/530,878.40
  6. Step 6: Final answer
    x = 482,716.29

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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.