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Finding the Fourth Proportional to 702,110.19, 968,909.96 and 379,820.20

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Solution

The fourth proportional to 702,110.19, 968,909.96 and 379,820.20 is: 524,150.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,110.19 : 968,909.96 = 379,820.20 : x
  2. Step 2: Convert to fraction form
    702,110.19/968,909.96 = 379,820.20/x
  3. Step 3: Cross multiply
    702,110.19x = 968,909.96 × 379,820.20
  4. Step 4: Simplify right side
    702,110.19x = 368,011,571,339.87
  5. Step 5: Solve for x
    x = 368,011,571,339.87/702,110.19
  6. Step 6: Final answer
    x = 524,150.74

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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.