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Finding the Fourth Proportional to 703,080.77, 970,246.63 and 380,783.49

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Solution

The fourth proportional to 703,080.77, 970,246.63 and 380,783.49 is: 525,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,080.77 : 970,246.63 = 380,783.49 : x
  2. Step 2: Convert to fraction form
    703,080.77/970,246.63 = 380,783.49/x
  3. Step 3: Cross multiply
    703,080.77x = 970,246.63 × 380,783.49
  4. Step 4: Simplify right side
    703,080.77x = 369,453,897,932.14
  5. Step 5: Solve for x
    x = 369,453,897,932.14/703,080.77
  6. Step 6: Final answer
    x = 525,478.60

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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.