Home / 557,945.10-769,971.89-303,301.76

Finding the Fourth Proportional to 557,945.10, 769,971.89 and 303,301.76

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Solution

The fourth proportional to 557,945.10, 769,971.89 and 303,301.76 is: 418,560.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,945.10 : 769,971.89 = 303,301.76 : x
  2. Step 2: Convert to fraction form
    557,945.10/769,971.89 = 303,301.76/x
  3. Step 3: Cross multiply
    557,945.10x = 769,971.89 × 303,301.76
  4. Step 4: Simplify right side
    557,945.10x = 233,533,826,295.92
  5. Step 5: Solve for x
    x = 233,533,826,295.92/557,945.10
  6. Step 6: Final answer
    x = 418,560.58

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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.