Home / 1,343,322.20-1,853,781.72-731,465.48

Finding the Fourth Proportional to 1,343,322.20, 1,853,781.72 and 731,465.48

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Solution

The fourth proportional to 1,343,322.20, 1,853,781.72 and 731,465.48 is: 1,009,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,322.20 : 1,853,781.72 = 731,465.48 : x
  2. Step 2: Convert to fraction form
    1,343,322.20/1,853,781.72 = 731,465.48/x
  3. Step 3: Cross multiply
    1,343,322.20x = 1,853,781.72 × 731,465.48
  4. Step 4: Simplify right side
    1,343,322.20x = 1,355,977,335,635.03
  5. Step 5: Solve for x
    x = 1,355,977,335,635.03/1,343,322.20
  6. Step 6: Final answer
    x = 1,009,420.77

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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.