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Finding the Fourth Proportional to 703,058.67, 970,220.67 and 380,768.78

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Solution

The fourth proportional to 703,058.67, 970,220.67 and 380,768.78 is: 525,460.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,058.67 : 970,220.67 = 380,768.78 : x
  2. Step 2: Convert to fraction form
    703,058.67/970,220.67 = 380,768.78/x
  3. Step 3: Cross multiply
    703,058.67x = 970,220.67 × 380,768.78
  4. Step 4: Simplify right side
    703,058.67x = 369,429,740,846.68
  5. Step 5: Solve for x
    x = 369,429,740,846.68/703,058.67
  6. Step 6: Final answer
    x = 525,460.76

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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.