Home / 774,022.50-1,068,146.93-425,169.78

Finding the Fourth Proportional to 774,022.50, 1,068,146.93 and 425,169.78

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Solution

The fourth proportional to 774,022.50, 1,068,146.93 and 425,169.78 is: 586,732.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,022.50 : 1,068,146.93 = 425,169.78 : x
  2. Step 2: Convert to fraction form
    774,022.50/1,068,146.93 = 425,169.78/x
  3. Step 3: Cross multiply
    774,022.50x = 1,068,146.93 × 425,169.78
  4. Step 4: Simplify right side
    774,022.50x = 454,143,793,109.93
  5. Step 5: Solve for x
    x = 454,143,793,109.93/774,022.50
  6. Step 6: Final answer
    x = 586,732.03

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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.