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Finding the Fourth Proportional to 703,081.77, 970,248.01 and 380,784.49

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Solution

The fourth proportional to 703,081.77, 970,248.01 and 380,784.49 is: 525,479.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,081.77 : 970,248.01 = 380,784.49 : x
  2. Step 2: Convert to fraction form
    703,081.77/970,248.01 = 380,784.49/x
  3. Step 3: Cross multiply
    703,081.77x = 970,248.01 × 380,784.49
  4. Step 4: Simplify right side
    703,081.77x = 369,455,393,661.37
  5. Step 5: Solve for x
    x = 369,455,393,661.37/703,081.77
  6. Step 6: Final answer
    x = 525,479.98

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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.