Home / 1,384,251.72-1,910,261.13-772,368.75

Finding the Fourth Proportional to 1,384,251.72, 1,910,261.13 and 772,368.75

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Solution

The fourth proportional to 1,384,251.72, 1,910,261.13 and 772,368.75 is: 1,065,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,251.72 : 1,910,261.13 = 772,368.75 : x
  2. Step 2: Convert to fraction form
    1,384,251.72/1,910,261.13 = 772,368.75/x
  3. Step 3: Cross multiply
    1,384,251.72x = 1,910,261.13 × 772,368.75
  4. Step 4: Simplify right side
    1,384,251.72x = 1,475,426,001,151.69
  5. Step 5: Solve for x
    x = 1,475,426,001,151.69/1,384,251.72
  6. Step 6: Final answer
    x = 1,065,865.39

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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.