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Finding the Fourth Proportional to 530,884.26, 732,621.30 and 289,166.10

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Solution

The fourth proportional to 530,884.26, 732,621.30 and 289,166.10 is: 399,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,884.26 : 732,621.30 = 289,166.10 : x
  2. Step 2: Convert to fraction form
    530,884.26/732,621.30 = 289,166.10/x
  3. Step 3: Cross multiply
    530,884.26x = 732,621.30 × 289,166.10
  4. Step 4: Simplify right side
    530,884.26x = 211,849,244,097.93
  5. Step 5: Solve for x
    x = 211,849,244,097.93/530,884.26
  6. Step 6: Final answer
    x = 399,049.77

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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.