Home / 1,203,207.28-1,660,426.08-666,663.28

Finding the Fourth Proportional to 1,203,207.28, 1,660,426.08 and 666,663.28

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Solution

The fourth proportional to 1,203,207.28, 1,660,426.08 and 666,663.28 is: 919,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,207.28 : 1,660,426.08 = 666,663.28 : x
  2. Step 2: Convert to fraction form
    1,203,207.28/1,660,426.08 = 666,663.28/x
  3. Step 3: Cross multiply
    1,203,207.28x = 1,660,426.08 × 666,663.28
  4. Step 4: Simplify right side
    1,203,207.28x = 1,106,945,096,690.34
  5. Step 5: Solve for x
    x = 1,106,945,096,690.34/1,203,207.28
  6. Step 6: Final answer
    x = 919,995.35

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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.