Home / 1,385,995.96-1,912,654.20-774,157.42

Finding the Fourth Proportional to 1,385,995.96, 1,912,654.20 and 774,157.42

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Solution

The fourth proportional to 1,385,995.96, 1,912,654.20 and 774,157.42 is: 1,068,325.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,995.96 : 1,912,654.20 = 774,157.42 : x
  2. Step 2: Convert to fraction form
    1,385,995.96/1,912,654.20 = 774,157.42/x
  3. Step 3: Cross multiply
    1,385,995.96x = 1,912,654.20 × 774,157.42
  4. Step 4: Simplify right side
    1,385,995.96x = 1,480,695,440,824.16
  5. Step 5: Solve for x
    x = 1,480,695,440,824.16/1,385,995.96
  6. Step 6: Final answer
    x = 1,068,325.94

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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.