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Finding the Fourth Proportional to 703,065.77, 970,225.94 and 380,768.49

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Solution

The fourth proportional to 703,065.77, 970,225.94 and 380,768.49 is: 525,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,065.77 : 970,225.94 = 380,768.49 : x
  2. Step 2: Convert to fraction form
    703,065.77/970,225.94 = 380,768.49/x
  3. Step 3: Cross multiply
    703,065.77x = 970,225.94 × 380,768.49
  4. Step 4: Simplify right side
    703,065.77x = 369,431,464,228.79
  5. Step 5: Solve for x
    x = 369,431,464,228.79/703,065.77
  6. Step 6: Final answer
    x = 525,457.91

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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.