Home / 557,724.15-769,799.30-316,150.86

Finding the Fourth Proportional to 557,724.15, 769,799.30 and 316,150.86

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Solution

The fourth proportional to 557,724.15, 769,799.30 and 316,150.86 is: 436,367.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,724.15 : 769,799.30 = 316,150.86 : x
  2. Step 2: Convert to fraction form
    557,724.15/769,799.30 = 316,150.86/x
  3. Step 3: Cross multiply
    557,724.15x = 769,799.30 × 316,150.86
  4. Step 4: Simplify right side
    557,724.15x = 243,372,712,028.39
  5. Step 5: Solve for x
    x = 243,372,712,028.39/557,724.15
  6. Step 6: Final answer
    x = 436,367.53

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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.