Home / 627,255.09-940,357.35-437,157.81

Finding the Fourth Proportional to 627,255.09, 940,357.35 and 437,157.81

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Solution

The fourth proportional to 627,255.09, 940,357.35 and 437,157.81 is: 655,370.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,255.09 : 940,357.35 = 437,157.81 : x
  2. Step 2: Convert to fraction form
    627,255.09/940,357.35 = 437,157.81/x
  3. Step 3: Cross multiply
    627,255.09x = 940,357.35 × 437,157.81
  4. Step 4: Simplify right side
    627,255.09x = 411,084,559,743.40
  5. Step 5: Solve for x
    x = 411,084,559,743.40/627,255.09
  6. Step 6: Final answer
    x = 655,370.62

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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.