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Finding the Fourth Proportional to 702,932.53, 970,045.12 and 380,642.62

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Solution

The fourth proportional to 702,932.53, 970,045.12 and 380,642.62 is: 525,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,932.53 : 970,045.12 = 380,642.62 : x
  2. Step 2: Convert to fraction form
    702,932.53/970,045.12 = 380,642.62/x
  3. Step 3: Cross multiply
    702,932.53x = 970,045.12 × 380,642.62
  4. Step 4: Simplify right side
    702,932.53x = 369,240,515,995.01
  5. Step 5: Solve for x
    x = 369,240,515,995.01/702,932.53
  6. Step 6: Final answer
    x = 525,285.86

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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.