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Finding the Fourth Proportional to 703,007.69, 970,145.78 and 380,710.41

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Solution

The fourth proportional to 703,007.69, 970,145.78 and 380,710.41 is: 525,377.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,007.69 : 970,145.78 = 380,710.41 : x
  2. Step 2: Convert to fraction form
    703,007.69/970,145.78 = 380,710.41/x
  3. Step 3: Cross multiply
    703,007.69x = 970,145.78 × 380,710.41
  4. Step 4: Simplify right side
    703,007.69x = 369,344,597,579.04
  5. Step 5: Solve for x
    x = 369,344,597,579.04/703,007.69
  6. Step 6: Final answer
    x = 525,377.75

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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.