Home / 1,438,605.59-2,157,907.77-427,723.16

Finding the Fourth Proportional to 1,438,605.59, 2,157,907.77 and 427,723.16

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Solution

The fourth proportional to 1,438,605.59, 2,157,907.77 and 427,723.16 is: 641,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,605.59 : 2,157,907.77 = 427,723.16 : x
  2. Step 2: Convert to fraction form
    1,438,605.59/2,157,907.77 = 427,723.16/x
  3. Step 3: Cross multiply
    1,438,605.59x = 2,157,907.77 × 427,723.16
  4. Step 4: Simplify right side
    1,438,605.59x = 922,987,119,583.41
  5. Step 5: Solve for x
    x = 922,987,119,583.41/1,438,605.59
  6. Step 6: Final answer
    x = 641,584.55

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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.