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Finding the Fourth Proportional to 703,429.49, 970,750.75 and 431,647.58

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Solution

The fourth proportional to 703,429.49, 970,750.75 and 431,647.58 is: 595,684.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,429.49 : 970,750.75 = 431,647.58 : x
  2. Step 2: Convert to fraction form
    703,429.49/970,750.75 = 431,647.58/x
  3. Step 3: Cross multiply
    703,429.49x = 970,750.75 × 431,647.58
  4. Step 4: Simplify right side
    703,429.49x = 419,022,215,391.79
  5. Step 5: Solve for x
    x = 419,022,215,391.79/703,429.49
  6. Step 6: Final answer
    x = 595,684.74

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Half scale
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Double scale
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Similar ratio
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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.