Home / 1,385,128.55-2,078,350.34-959,319.65

Finding the Fourth Proportional to 1,385,128.55, 2,078,350.34 and 959,319.65

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Solution

The fourth proportional to 1,385,128.55, 2,078,350.34 and 959,319.65 is: 1,439,434.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,128.55 : 2,078,350.34 = 959,319.65 : x
  2. Step 2: Convert to fraction form
    1,385,128.55/2,078,350.34 = 959,319.65/x
  3. Step 3: Cross multiply
    1,385,128.55x = 2,078,350.34 × 959,319.65
  4. Step 4: Simplify right side
    1,385,128.55x = 1,993,802,305,557.83
  5. Step 5: Solve for x
    x = 1,993,802,305,557.83/1,385,128.55
  6. Step 6: Final answer
    x = 1,439,434.85

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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.