Home / 1,396,384.80-2,094,577.20-687,796.80

Finding the Fourth Proportional to 1,396,384.80, 2,094,577.20 and 687,796.80

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Solution

The fourth proportional to 1,396,384.80, 2,094,577.20 and 687,796.80 is: 1,031,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,384.80 : 2,094,577.20 = 687,796.80 : x
  2. Step 2: Convert to fraction form
    1,396,384.80/2,094,577.20 = 687,796.80/x
  3. Step 3: Cross multiply
    1,396,384.80x = 2,094,577.20 × 687,796.80
  4. Step 4: Simplify right side
    1,396,384.80x = 1,440,643,495,512.96
  5. Step 5: Solve for x
    x = 1,440,643,495,512.96/1,396,384.80
  6. Step 6: Final answer
    x = 1,031,695.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.