Home / 1,343,214.12-1,853,668.70-731,400.40

Finding the Fourth Proportional to 1,343,214.12, 1,853,668.70 and 731,400.40

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Solution

The fourth proportional to 1,343,214.12, 1,853,668.70 and 731,400.40 is: 1,009,350.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,214.12 : 1,853,668.70 = 731,400.40 : x
  2. Step 2: Convert to fraction form
    1,343,214.12/1,853,668.70 = 731,400.40/x
  3. Step 3: Cross multiply
    1,343,214.12x = 1,853,668.70 × 731,400.40
  4. Step 4: Simplify right side
    1,343,214.12x = 1,355,774,028,647.48
  5. Step 5: Solve for x
    x = 1,355,774,028,647.48/1,343,214.12
  6. Step 6: Final answer
    x = 1,009,350.64

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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.