Home / 1,212,319.13-1,818,487.80-538,218.90

Finding the Fourth Proportional to 1,212,319.13, 1,818,487.80 and 538,218.90

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Solution

The fourth proportional to 1,212,319.13, 1,818,487.80 and 538,218.90 is: 807,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,319.13 : 1,818,487.80 = 538,218.90 : x
  2. Step 2: Convert to fraction form
    1,212,319.13/1,818,487.80 = 538,218.90/x
  3. Step 3: Cross multiply
    1,212,319.13x = 1,818,487.80 × 538,218.90
  4. Step 4: Simplify right side
    1,212,319.13x = 978,744,503,379.42
  5. Step 5: Solve for x
    x = 978,744,503,379.42/1,212,319.13
  6. Step 6: Final answer
    x = 807,332.40

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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.