Home / 543,909.62-815,869.29-223,985.54

Finding the Fourth Proportional to 543,909.62, 815,869.29 and 223,985.54

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Solution

The fourth proportional to 543,909.62, 815,869.29 and 223,985.54 is: 335,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,909.62 : 815,869.29 = 223,985.54 : x
  2. Step 2: Convert to fraction form
    543,909.62/815,869.29 = 223,985.54/x
  3. Step 3: Cross multiply
    543,909.62x = 815,869.29 × 223,985.54
  4. Step 4: Simplify right side
    543,909.62x = 182,742,926,369.69
  5. Step 5: Solve for x
    x = 182,742,926,369.69/543,909.62
  6. Step 6: Final answer
    x = 335,980.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.