Home / 743,975.42-1,026,620.42-412,839.66

Finding the Fourth Proportional to 743,975.42, 1,026,620.42 and 412,839.66

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Solution

The fourth proportional to 743,975.42, 1,026,620.42 and 412,839.66 is: 569,682.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,975.42 : 1,026,620.42 = 412,839.66 : x
  2. Step 2: Convert to fraction form
    743,975.42/1,026,620.42 = 412,839.66/x
  3. Step 3: Cross multiply
    743,975.42x = 1,026,620.42 × 412,839.66
  4. Step 4: Simplify right side
    743,975.42x = 423,829,625,141.86
  5. Step 5: Solve for x
    x = 423,829,625,141.86/743,975.42
  6. Step 6: Final answer
    x = 569,682.30

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1.5x scale

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.