Home / 1,343,213.12-1,853,667.32-731,399.40

Finding the Fourth Proportional to 1,343,213.12, 1,853,667.32 and 731,399.40

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Solution

The fourth proportional to 1,343,213.12, 1,853,667.32 and 731,399.40 is: 1,009,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,213.12 : 1,853,667.32 = 731,399.40 : x
  2. Step 2: Convert to fraction form
    1,343,213.12/1,853,667.32 = 731,399.40/x
  3. Step 3: Cross multiply
    1,343,213.12x = 1,853,667.32 × 731,399.40
  4. Step 4: Simplify right side
    1,343,213.12x = 1,355,771,165,647.61
  5. Step 5: Solve for x
    x = 1,355,771,165,647.61/1,343,213.12
  6. Step 6: Final answer
    x = 1,009,349.26

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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.