Home / 1,276,386.23-1,761,103.65-724,979.27

Finding the Fourth Proportional to 1,276,386.23, 1,761,103.65 and 724,979.27

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Solution

The fourth proportional to 1,276,386.23, 1,761,103.65 and 724,979.27 is: 1,000,295.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,386.23 : 1,761,103.65 = 724,979.27 : x
  2. Step 2: Convert to fraction form
    1,276,386.23/1,761,103.65 = 724,979.27/x
  3. Step 3: Cross multiply
    1,276,386.23x = 1,761,103.65 × 724,979.27
  4. Step 4: Simplify right side
    1,276,386.23x = 1,276,763,638,571.34
  5. Step 5: Solve for x
    x = 1,276,763,638,571.34/1,276,386.23
  6. Step 6: Final answer
    x = 1,000,295.69

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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.