Home / 790,815.64-1,185,424.65-311,379.83

Finding the Fourth Proportional to 790,815.64, 1,185,424.65 and 311,379.83

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Solution

The fourth proportional to 790,815.64, 1,185,424.65 and 311,379.83 is: 466,755.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,815.64 : 1,185,424.65 = 311,379.83 : x
  2. Step 2: Convert to fraction form
    790,815.64/1,185,424.65 = 311,379.83/x
  3. Step 3: Cross multiply
    790,815.64x = 1,185,424.65 × 311,379.83
  4. Step 4: Simplify right side
    790,815.64x = 369,117,325,994.81
  5. Step 5: Solve for x
    x = 369,117,325,994.81/790,815.64
  6. Step 6: Final answer
    x = 466,755.22

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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.