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Finding the Fourth Proportional to 702,457.62, 969,392.70 and 380,168.04

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Solution

The fourth proportional to 702,457.62, 969,392.70 and 380,168.04 is: 524,632.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,457.62 : 969,392.70 = 380,168.04 : x
  2. Step 2: Convert to fraction form
    702,457.62/969,392.70 = 380,168.04/x
  3. Step 3: Cross multiply
    702,457.62x = 969,392.70 × 380,168.04
  4. Step 4: Simplify right side
    702,457.62x = 368,532,122,749.31
  5. Step 5: Solve for x
    x = 368,532,122,749.31/702,457.62
  6. Step 6: Final answer
    x = 524,632.54

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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.