Home / 557,784.22-769,748.16-303,135.40

Finding the Fourth Proportional to 557,784.22, 769,748.16 and 303,135.40

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Solution

The fourth proportional to 557,784.22, 769,748.16 and 303,135.40 is: 418,330.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,784.22 : 769,748.16 = 303,135.40 : x
  2. Step 2: Convert to fraction form
    557,784.22/769,748.16 = 303,135.40/x
  3. Step 3: Cross multiply
    557,784.22x = 769,748.16 × 303,135.40
  4. Step 4: Simplify right side
    557,784.22x = 233,337,916,380.86
  5. Step 5: Solve for x
    x = 233,337,916,380.86/557,784.22
  6. Step 6: Final answer
    x = 418,330.08

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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.