Home / 1,398,528.72-1,929,270.96-882,921.60

Finding the Fourth Proportional to 1,398,528.72, 1,929,270.96 and 882,921.60

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Solution

The fourth proportional to 1,398,528.72, 1,929,270.96 and 882,921.60 is: 1,217,990.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,528.72 : 1,929,270.96 = 882,921.60 : x
  2. Step 2: Convert to fraction form
    1,398,528.72/1,929,270.96 = 882,921.60/x
  3. Step 3: Cross multiply
    1,398,528.72x = 1,929,270.96 × 882,921.60
  4. Step 4: Simplify right side
    1,398,528.72x = 1,703,395,002,836.74
  5. Step 5: Solve for x
    x = 1,703,395,002,836.74/1,398,528.72
  6. Step 6: Final answer
    x = 1,217,990.72

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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.