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Finding the Fourth Proportional to 703,160.30, 970,361.25 and 380,870.51

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Solution

The fourth proportional to 703,160.30, 970,361.25 and 380,870.51 is: 525,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,160.30 : 970,361.25 = 380,870.51 : x
  2. Step 2: Convert to fraction form
    703,160.30/970,361.25 = 380,870.51/x
  3. Step 3: Cross multiply
    703,160.30x = 970,361.25 × 380,870.51
  4. Step 4: Simplify right side
    703,160.30x = 369,581,984,171.74
  5. Step 5: Solve for x
    x = 369,581,984,171.74/703,160.30
  6. Step 6: Final answer
    x = 525,601.32

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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.