Home / 1,385,318.27-1,911,720.53-773,480.45

Finding the Fourth Proportional to 1,385,318.27, 1,911,720.53 and 773,480.45

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Solution

The fourth proportional to 1,385,318.27, 1,911,720.53 and 773,480.45 is: 1,067,392.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,318.27 : 1,911,720.53 = 773,480.45 : x
  2. Step 2: Convert to fraction form
    1,385,318.27/1,911,720.53 = 773,480.45/x
  3. Step 3: Cross multiply
    1,385,318.27x = 1,911,720.53 × 773,480.45
  4. Step 4: Simplify right side
    1,385,318.27x = 1,478,678,451,951.24
  5. Step 5: Solve for x
    x = 1,478,678,451,951.24/1,385,318.27
  6. Step 6: Final answer
    x = 1,067,392.59

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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.