Home / 1,300,687.80-1,951,031.70-740,815.80

Finding the Fourth Proportional to 1,300,687.80, 1,951,031.70 and 740,815.80

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Solution

The fourth proportional to 1,300,687.80, 1,951,031.70 and 740,815.80 is: 1,111,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,687.80 : 1,951,031.70 = 740,815.80 : x
  2. Step 2: Convert to fraction form
    1,300,687.80/1,951,031.70 = 740,815.80/x
  3. Step 3: Cross multiply
    1,300,687.80x = 1,951,031.70 × 740,815.80
  4. Step 4: Simplify right side
    1,300,687.80x = 1,445,355,109,660.86
  5. Step 5: Solve for x
    x = 1,445,355,109,660.86/1,300,687.80
  6. Step 6: Final answer
    x = 1,111,223.70

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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.