Home / 1,427,058.28-2,140,379.86-415,908.80

Finding the Fourth Proportional to 1,427,058.28, 2,140,379.86 and 415,908.80

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Solution

The fourth proportional to 1,427,058.28, 2,140,379.86 and 415,908.80 is: 623,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,058.28 : 2,140,379.86 = 415,908.80 : x
  2. Step 2: Convert to fraction form
    1,427,058.28/2,140,379.86 = 415,908.80/x
  3. Step 3: Cross multiply
    1,427,058.28x = 2,140,379.86 × 415,908.80
  4. Step 4: Simplify right side
    1,427,058.28x = 890,202,819,116.77
  5. Step 5: Solve for x
    x = 890,202,819,116.77/1,427,058.28
  6. Step 6: Final answer
    x = 623,802.71

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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.