Home / 868,051.80-1,302,077.70-728,083.80

Finding the Fourth Proportional to 868,051.80, 1,302,077.70 and 728,083.80

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Solution

The fourth proportional to 868,051.80, 1,302,077.70 and 728,083.80 is: 1,092,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,051.80 : 1,302,077.70 = 728,083.80 : x
  2. Step 2: Convert to fraction form
    868,051.80/1,302,077.70 = 728,083.80/x
  3. Step 3: Cross multiply
    868,051.80x = 1,302,077.70 × 728,083.80
  4. Step 4: Simplify right side
    868,051.80x = 948,021,679,711.26
  5. Step 5: Solve for x
    x = 948,021,679,711.26/868,051.80
  6. Step 6: Final answer
    x = 1,092,125.70

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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.