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Finding the Fourth Proportional to 530,467.51, 732,054.50 and 288,757.03

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Solution

The fourth proportional to 530,467.51, 732,054.50 and 288,757.03 is: 398,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,467.51 : 732,054.50 = 288,757.03 : x
  2. Step 2: Convert to fraction form
    530,467.51/732,054.50 = 288,757.03/x
  3. Step 3: Cross multiply
    530,467.51x = 732,054.50 × 288,757.03
  4. Step 4: Simplify right side
    530,467.51x = 211,385,883,218.14
  5. Step 5: Solve for x
    x = 211,385,883,218.14/530,467.51
  6. Step 6: Final answer
    x = 398,489.78

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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.