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Finding the Fourth Proportional to 610,029.69, 914,145.37 and 339,785.80

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Solution

The fourth proportional to 610,029.69, 914,145.37 and 339,785.80 is: 509,177.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,029.69 : 914,145.37 = 339,785.80 : x
  2. Step 2: Convert to fraction form
    610,029.69/914,145.37 = 339,785.80/x
  3. Step 3: Cross multiply
    610,029.69x = 914,145.37 × 339,785.80
  4. Step 4: Simplify right side
    610,029.69x = 310,613,612,726.92
  5. Step 5: Solve for x
    x = 310,613,612,726.92/610,029.69
  6. Step 6: Final answer
    x = 509,177.86

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1.5x scale

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.