Home / 421,035.52-631,595.28-121,523.36

Finding the Fourth Proportional to 421,035.52, 631,595.28 and 121,523.36

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Solution

The fourth proportional to 421,035.52, 631,595.28 and 121,523.36 is: 182,297.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,035.52 : 631,595.28 = 121,523.36 : x
  2. Step 2: Convert to fraction form
    421,035.52/631,595.28 = 121,523.36/x
  3. Step 3: Cross multiply
    421,035.52x = 631,595.28 × 121,523.36
  4. Step 4: Simplify right side
    421,035.52x = 76,753,580,585.74
  5. Step 5: Solve for x
    x = 76,753,580,585.74/421,035.52
  6. Step 6: Final answer
    x = 182,297.16

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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.