Home / 1,385,327.28-1,911,732.90-773,489.46

Finding the Fourth Proportional to 1,385,327.28, 1,911,732.90 and 773,489.46

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Solution

The fourth proportional to 1,385,327.28, 1,911,732.90 and 773,489.46 is: 1,067,404.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,327.28 : 1,911,732.90 = 773,489.46 : x
  2. Step 2: Convert to fraction form
    1,385,327.28/1,911,732.90 = 773,489.46/x
  3. Step 3: Cross multiply
    1,385,327.28x = 1,911,732.90 × 773,489.46
  4. Step 4: Simplify right side
    1,385,327.28x = 1,478,705,248,485.23
  5. Step 5: Solve for x
    x = 1,478,705,248,485.23/1,385,327.28
  6. Step 6: Final answer
    x = 1,067,404.99

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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.