Home / 1,500,991.14-2,071,342.90-812,657.50

Finding the Fourth Proportional to 1,500,991.14, 2,071,342.90 and 812,657.50

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Solution

The fourth proportional to 1,500,991.14, 2,071,342.90 and 812,657.50 is: 1,121,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,991.14 : 2,071,342.90 = 812,657.50 : x
  2. Step 2: Convert to fraction form
    1,500,991.14/2,071,342.90 = 812,657.50/x
  3. Step 3: Cross multiply
    1,500,991.14x = 2,071,342.90 × 812,657.50
  4. Step 4: Simplify right side
    1,500,991.14x = 1,683,292,338,594.22
  5. Step 5: Solve for x
    x = 1,683,292,338,594.22/1,500,991.14
  6. Step 6: Final answer
    x = 1,121,453.88

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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.