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Finding the Fourth Proportional to 647,287.20, 893,256.66 and 360,800.73

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Solution

The fourth proportional to 647,287.20, 893,256.66 and 360,800.73 is: 497,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,287.20 : 893,256.66 = 360,800.73 : x
  2. Step 2: Convert to fraction form
    647,287.20/893,256.66 = 360,800.73/x
  3. Step 3: Cross multiply
    647,287.20x = 893,256.66 × 360,800.73
  4. Step 4: Simplify right side
    647,287.20x = 322,287,655,005.36
  5. Step 5: Solve for x
    x = 322,287,655,005.36/647,287.20
  6. Step 6: Final answer
    x = 497,905.19

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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.