Home / 516,072.11-712,155.28-286,644.27

Finding the Fourth Proportional to 516,072.11, 712,155.28 and 286,644.27

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Solution

The fourth proportional to 516,072.11, 712,155.28 and 286,644.27 is: 395,555.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,072.11 : 712,155.28 = 286,644.27 : x
  2. Step 2: Convert to fraction form
    516,072.11/712,155.28 = 286,644.27/x
  3. Step 3: Cross multiply
    516,072.11x = 712,155.28 × 286,644.27
  4. Step 4: Simplify right side
    516,072.11x = 204,135,226,801.47
  5. Step 5: Solve for x
    x = 204,135,226,801.47/516,072.11
  6. Step 6: Final answer
    x = 395,555.63

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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.