Home / 783,870.16-1,176,067.68-310,690.84

Finding the Fourth Proportional to 783,870.16, 1,176,067.68 and 310,690.84

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Solution

The fourth proportional to 783,870.16, 1,176,067.68 and 310,690.84 is: 466,140.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,870.16 : 1,176,067.68 = 310,690.84 : x
  2. Step 2: Convert to fraction form
    783,870.16/1,176,067.68 = 310,690.84/x
  3. Step 3: Cross multiply
    783,870.16x = 1,176,067.68 × 310,690.84
  4. Step 4: Simplify right side
    783,870.16x = 365,393,455,396.05
  5. Step 5: Solve for x
    x = 365,393,455,396.05/783,870.16
  6. Step 6: Final answer
    x = 466,140.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.