Home / 1,343,212.12-1,853,665.94-731,398.40

Finding the Fourth Proportional to 1,343,212.12, 1,853,665.94 and 731,398.40

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Solution

The fourth proportional to 1,343,212.12, 1,853,665.94 and 731,398.40 is: 1,009,347.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,212.12 : 1,853,665.94 = 731,398.40 : x
  2. Step 2: Convert to fraction form
    1,343,212.12/1,853,665.94 = 731,398.40/x
  3. Step 3: Cross multiply
    1,343,212.12x = 1,853,665.94 × 731,398.40
  4. Step 4: Simplify right side
    1,343,212.12x = 1,355,768,302,650.50
  5. Step 5: Solve for x
    x = 1,355,768,302,650.50/1,343,212.12
  6. Step 6: Final answer
    x = 1,009,347.88

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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.