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Finding the Fourth Proportional to 647,446.20, 893,479.50 and 360,984.12

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Solution

The fourth proportional to 647,446.20, 893,479.50 and 360,984.12 is: 498,160.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,446.20 : 893,479.50 = 360,984.12 : x
  2. Step 2: Convert to fraction form
    647,446.20/893,479.50 = 360,984.12/x
  3. Step 3: Cross multiply
    647,446.20x = 893,479.50 × 360,984.12
  4. Step 4: Simplify right side
    647,446.20x = 322,531,911,045.54
  5. Step 5: Solve for x
    x = 322,531,911,045.54/647,446.20
  6. Step 6: Final answer
    x = 498,160.17

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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.