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Finding the Fourth Proportional to 703,019.60, 970,155.06 and 380,727.08

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Solution

The fourth proportional to 703,019.60, 970,155.06 and 380,727.08 is: 525,396.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,019.60 : 970,155.06 = 380,727.08 : x
  2. Step 2: Convert to fraction form
    703,019.60/970,155.06 = 380,727.08/x
  3. Step 3: Cross multiply
    703,019.60x = 970,155.06 × 380,727.08
  4. Step 4: Simplify right side
    703,019.60x = 369,364,303,141.03
  5. Step 5: Solve for x
    x = 369,364,303,141.03/703,019.60
  6. Step 6: Final answer
    x = 525,396.88

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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.