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Finding the Fourth Proportional to 703,048.80, 970,208.13 and 380,759.27

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Solution

The fourth proportional to 703,048.80, 970,208.13 and 380,759.27 is: 525,448.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,048.80 : 970,208.13 = 380,759.27 : x
  2. Step 2: Convert to fraction form
    703,048.80/970,208.13 = 380,759.27/x
  3. Step 3: Cross multiply
    703,048.80x = 970,208.13 × 380,759.27
  4. Step 4: Simplify right side
    703,048.80x = 369,415,734,475.82
  5. Step 5: Solve for x
    x = 369,415,734,475.82/703,048.80
  6. Step 6: Final answer
    x = 525,448.21

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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.