Home / 557,865.72-769,850.10-303,216.12

Finding the Fourth Proportional to 557,865.72, 769,850.10 and 303,216.12

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Solution

The fourth proportional to 557,865.72, 769,850.10 and 303,216.12 is: 418,435.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,865.72 : 769,850.10 = 303,216.12 : x
  2. Step 2: Convert to fraction form
    557,865.72/769,850.10 = 303,216.12/x
  3. Step 3: Cross multiply
    557,865.72x = 769,850.10 × 303,216.12
  4. Step 4: Simplify right side
    557,865.72x = 233,430,960,303.61
  5. Step 5: Solve for x
    x = 233,430,960,303.61/557,865.72
  6. Step 6: Final answer
    x = 418,435.75

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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.