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Finding the Fourth Proportional to 703,161.05, 970,362.52 and 380,870.15

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Solution

The fourth proportional to 703,161.05, 970,362.52 and 380,870.15 is: 525,600.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,161.05 : 970,362.52 = 380,870.15 : x
  2. Step 2: Convert to fraction form
    703,161.05/970,362.52 = 380,870.15/x
  3. Step 3: Cross multiply
    703,161.05x = 970,362.52 × 380,870.15
  4. Step 4: Simplify right side
    703,161.05x = 369,582,112,742.79
  5. Step 5: Solve for x
    x = 369,582,112,742.79/703,161.05
  6. Step 6: Final answer
    x = 525,600.95

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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.