Home / 750,623.01-1,035,933.71-428,381.61

Finding the Fourth Proportional to 750,623.01, 1,035,933.71 and 428,381.61

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Solution

The fourth proportional to 750,623.01, 1,035,933.71 and 428,381.61 is: 591,208.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,623.01 : 1,035,933.71 = 428,381.61 : x
  2. Step 2: Convert to fraction form
    750,623.01/1,035,933.71 = 428,381.61/x
  3. Step 3: Cross multiply
    750,623.01x = 1,035,933.71 × 428,381.61
  4. Step 4: Simplify right side
    750,623.01x = 443,774,948,401.17
  5. Step 5: Solve for x
    x = 443,774,948,401.17/750,623.01
  6. Step 6: Final answer
    x = 591,208.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.