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Finding the Fourth Proportional to 555,913.58, 767,243.01 and 351,983.46

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Solution

The fourth proportional to 555,913.58, 767,243.01 and 351,983.46 is: 485,789.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,913.58 : 767,243.01 = 351,983.46 : x
  2. Step 2: Convert to fraction form
    555,913.58/767,243.01 = 351,983.46/x
  3. Step 3: Cross multiply
    555,913.58x = 767,243.01 × 351,983.46
  4. Step 4: Simplify right side
    555,913.58x = 270,056,849,320.62
  5. Step 5: Solve for x
    x = 270,056,849,320.62/555,913.58
  6. Step 6: Final answer
    x = 485,789.27

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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.