Home / 854,789.70-1,179,239.13-515,064.90

Finding the Fourth Proportional to 854,789.70, 1,179,239.13 and 515,064.90

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Solution

The fourth proportional to 854,789.70, 1,179,239.13 and 515,064.90 is: 710,566.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,789.70 : 1,179,239.13 = 515,064.90 : x
  2. Step 2: Convert to fraction form
    854,789.70/1,179,239.13 = 515,064.90/x
  3. Step 3: Cross multiply
    854,789.70x = 1,179,239.13 × 515,064.90
  4. Step 4: Simplify right side
    854,789.70x = 607,384,684,569.54
  5. Step 5: Solve for x
    x = 607,384,684,569.54/854,789.70
  6. Step 6: Final answer
    x = 710,566.22

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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.