Home / 1,239,701.05-1,858,702.64-631,311.69

Finding the Fourth Proportional to 1,239,701.05, 1,858,702.64 and 631,311.69

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Solution

The fourth proportional to 1,239,701.05, 1,858,702.64 and 631,311.69 is: 946,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,701.05 : 1,858,702.64 = 631,311.69 : x
  2. Step 2: Convert to fraction form
    1,239,701.05/1,858,702.64 = 631,311.69/x
  3. Step 3: Cross multiply
    1,239,701.05x = 1,858,702.64 × 631,311.69
  4. Step 4: Simplify right side
    1,239,701.05x = 1,173,420,704,865.86
  5. Step 5: Solve for x
    x = 1,173,420,704,865.86/1,239,701.05
  6. Step 6: Final answer
    x = 946,535.22

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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.