Home / 761,020.81-1,141,542.38-361,702.33

Finding the Fourth Proportional to 761,020.81, 1,141,542.38 and 361,702.33

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Solution

The fourth proportional to 761,020.81, 1,141,542.38 and 361,702.33 is: 542,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,020.81 : 1,141,542.38 = 361,702.33 : x
  2. Step 2: Convert to fraction form
    761,020.81/1,141,542.38 = 361,702.33/x
  3. Step 3: Cross multiply
    761,020.81x = 1,141,542.38 × 361,702.33
  4. Step 4: Simplify right side
    761,020.81x = 412,898,538,639.75
  5. Step 5: Solve for x
    x = 412,898,538,639.75/761,020.81
  6. Step 6: Final answer
    x = 542,558.80

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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.