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Finding the Fourth Proportional to 702,284.68, 969,150.18 and 379,995.40

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Solution

The fourth proportional to 702,284.68, 969,150.18 and 379,995.40 is: 524,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,284.68 : 969,150.18 = 379,995.40 : x
  2. Step 2: Convert to fraction form
    702,284.68/969,150.18 = 379,995.40/x
  3. Step 3: Cross multiply
    702,284.68x = 969,150.18 × 379,995.40
  4. Step 4: Simplify right side
    702,284.68x = 368,272,610,309.17
  5. Step 5: Solve for x
    x = 368,272,610,309.17/702,284.68
  6. Step 6: Final answer
    x = 524,392.20

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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.