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Finding the Fourth Proportional to 702,937.78, 970,052.38 and 380,647.85

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Solution

The fourth proportional to 702,937.78, 970,052.38 and 380,647.85 is: 525,293.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,937.78 : 970,052.38 = 380,647.85 : x
  2. Step 2: Convert to fraction form
    702,937.78/970,052.38 = 380,647.85/x
  3. Step 3: Cross multiply
    702,937.78x = 970,052.38 × 380,647.85
  4. Step 4: Simplify right side
    702,937.78x = 369,248,352,834.38
  5. Step 5: Solve for x
    x = 369,248,352,834.38/702,937.78
  6. Step 6: Final answer
    x = 525,293.08

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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.