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Finding the Fourth Proportional to 702,622.84, 969,619.98 and 380,335.59

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Solution

The fourth proportional to 702,622.84, 969,619.98 and 380,335.59 is: 524,863.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,622.84 : 969,619.98 = 380,335.59 : x
  2. Step 2: Convert to fraction form
    702,622.84/969,619.98 = 380,335.59/x
  3. Step 3: Cross multiply
    702,622.84x = 969,619.98 × 380,335.59
  4. Step 4: Simplify right side
    702,622.84x = 368,780,987,169.09
  5. Step 5: Solve for x
    x = 368,780,987,169.09/702,622.84
  6. Step 6: Final answer
    x = 524,863.36

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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.