Home / 1,513,905.72-2,089,094.46-868,871.88

Finding the Fourth Proportional to 1,513,905.72, 2,089,094.46 and 868,871.88

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Solution

The fourth proportional to 1,513,905.72, 2,089,094.46 and 868,871.88 is: 1,198,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513,905.72 : 2,089,094.46 = 868,871.88 : x
  2. Step 2: Convert to fraction form
    1,513,905.72/2,089,094.46 = 868,871.88/x
  3. Step 3: Cross multiply
    1,513,905.72x = 2,089,094.46 × 868,871.88
  4. Step 4: Simplify right side
    1,513,905.72x = 1,815,155,430,957.78
  5. Step 5: Solve for x
    x = 1,815,155,430,957.78/1,513,905.72
  6. Step 6: Final answer
    x = 1,198,988.42

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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.