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Finding the Fourth Proportional to 703,601.86, 971,074.79 and 445,502.80

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Solution

The fourth proportional to 703,601.86, 971,074.79 and 445,502.80 is: 614,859.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,601.86 : 971,074.79 = 445,502.80 : x
  2. Step 2: Convert to fraction form
    703,601.86/971,074.79 = 445,502.80/x
  3. Step 3: Cross multiply
    703,601.86x = 971,074.79 × 445,502.80
  4. Step 4: Simplify right side
    703,601.86x = 432,616,541,117.33
  5. Step 5: Solve for x
    x = 432,616,541,117.33/703,601.86
  6. Step 6: Final answer
    x = 614,859.86

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Double scale
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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.