Home / 1,149,621.81-1,586,478.60-666,467.07

Finding the Fourth Proportional to 1,149,621.81, 1,586,478.60 and 666,467.07

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Solution

The fourth proportional to 1,149,621.81, 1,586,478.60 and 666,467.07 is: 919,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,621.81 : 1,586,478.60 = 666,467.07 : x
  2. Step 2: Convert to fraction form
    1,149,621.81/1,586,478.60 = 666,467.07/x
  3. Step 3: Cross multiply
    1,149,621.81x = 1,586,478.60 × 666,467.07
  4. Step 4: Simplify right side
    1,149,621.81x = 1,057,335,744,159.70
  5. Step 5: Solve for x
    x = 1,057,335,744,159.70/1,149,621.81
  6. Step 6: Final answer
    x = 919,724.85

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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.