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Finding the Fourth Proportional to 530,501.61, 732,092.30 and 288,786.02

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Solution

The fourth proportional to 530,501.61, 732,092.30 and 288,786.02 is: 398,524.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,501.61 : 732,092.30 = 288,786.02 : x
  2. Step 2: Convert to fraction form
    530,501.61/732,092.30 = 288,786.02/x
  3. Step 3: Cross multiply
    530,501.61x = 732,092.30 × 288,786.02
  4. Step 4: Simplify right side
    530,501.61x = 211,418,021,589.65
  5. Step 5: Solve for x
    x = 211,418,021,589.65/530,501.61
  6. Step 6: Final answer
    x = 398,524.75

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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.