Home / 498,023.21-687,251.72-294,140.14

Finding the Fourth Proportional to 498,023.21, 687,251.72 and 294,140.14

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Solution

The fourth proportional to 498,023.21, 687,251.72 and 294,140.14 is: 405,901.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,023.21 : 687,251.72 = 294,140.14 : x
  2. Step 2: Convert to fraction form
    498,023.21/687,251.72 = 294,140.14/x
  3. Step 3: Cross multiply
    498,023.21x = 687,251.72 × 294,140.14
  4. Step 4: Simplify right side
    498,023.21x = 202,148,316,153.26
  5. Step 5: Solve for x
    x = 202,148,316,153.26/498,023.21
  6. Step 6: Final answer
    x = 405,901.39

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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.