Home / 420,941.74-631,412.61-154,587.01

Finding the Fourth Proportional to 420,941.74, 631,412.61 and 154,587.01

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Solution

The fourth proportional to 420,941.74, 631,412.61 and 154,587.01 is: 231,880.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,941.74 : 631,412.61 = 154,587.01 : x
  2. Step 2: Convert to fraction form
    420,941.74/631,412.61 = 154,587.01/x
  3. Step 3: Cross multiply
    420,941.74x = 631,412.61 × 154,587.01
  4. Step 4: Simplify right side
    420,941.74x = 97,608,187,456.20
  5. Step 5: Solve for x
    x = 97,608,187,456.20/420,941.74
  6. Step 6: Final answer
    x = 231,880.52

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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.