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Finding the Fourth Proportional to 702,932.20, 970,051.04 and 380,642.30

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Solution

The fourth proportional to 702,932.20, 970,051.04 and 380,642.30 is: 525,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,932.20 : 970,051.04 = 380,642.30 : x
  2. Step 2: Convert to fraction form
    702,932.20/970,051.04 = 380,642.30/x
  3. Step 3: Cross multiply
    702,932.20x = 970,051.04 × 380,642.30
  4. Step 4: Simplify right side
    702,932.20x = 369,242,458,982.99
  5. Step 5: Solve for x
    x = 369,242,458,982.99/702,932.20
  6. Step 6: Final answer
    x = 525,288.87

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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.