Home / 744,012.48-1,026,817.38-421,687.92

Finding the Fourth Proportional to 744,012.48, 1,026,817.38 and 421,687.92

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Solution

The fourth proportional to 744,012.48, 1,026,817.38 and 421,687.92 is: 581,974.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,012.48 : 1,026,817.38 = 421,687.92 : x
  2. Step 2: Convert to fraction form
    744,012.48/1,026,817.38 = 421,687.92/x
  3. Step 3: Cross multiply
    744,012.48x = 1,026,817.38 × 421,687.92
  4. Step 4: Simplify right side
    744,012.48x = 432,996,485,192.05
  5. Step 5: Solve for x
    x = 432,996,485,192.05/744,012.48
  6. Step 6: Final answer
    x = 581,974.76

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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.