Home / 457,269.27-685,758.55-427,417.33

Finding the Fourth Proportional to 457,269.27, 685,758.55 and 427,417.33

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Solution

The fourth proportional to 457,269.27, 685,758.55 and 427,417.33 is: 640,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,269.27 : 685,758.55 = 427,417.33 : x
  2. Step 2: Convert to fraction form
    457,269.27/685,758.55 = 427,417.33/x
  3. Step 3: Cross multiply
    457,269.27x = 685,758.55 × 427,417.33
  4. Step 4: Simplify right side
    457,269.27x = 293,105,088,465.67
  5. Step 5: Solve for x
    x = 293,105,088,465.67/457,269.27
  6. Step 6: Final answer
    x = 640,990.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.