Home / 919,710.91-1,379,917.50-358,789.15

Finding the Fourth Proportional to 919,710.91, 1,379,917.50 and 358,789.15

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Solution

The fourth proportional to 919,710.91, 1,379,917.50 and 358,789.15 is: 538,320.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,710.91 : 1,379,917.50 = 358,789.15 : x
  2. Step 2: Convert to fraction form
    919,710.91/1,379,917.50 = 358,789.15/x
  3. Step 3: Cross multiply
    919,710.91x = 1,379,917.50 × 358,789.15
  4. Step 4: Simplify right side
    919,710.91x = 495,099,426,895.13
  5. Step 5: Solve for x
    x = 495,099,426,895.13/919,710.91
  6. Step 6: Final answer
    x = 538,320.71

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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.