Home / 851,318.66-1,174,772.67-488,718.78

Finding the Fourth Proportional to 851,318.66, 1,174,772.67 and 488,718.78

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Solution

The fourth proportional to 851,318.66, 1,174,772.67 and 488,718.78 is: 674,404.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,318.66 : 1,174,772.67 = 488,718.78 : x
  2. Step 2: Convert to fraction form
    851,318.66/1,174,772.67 = 488,718.78/x
  3. Step 3: Cross multiply
    851,318.66x = 1,174,772.67 × 488,718.78
  4. Step 4: Simplify right side
    851,318.66x = 574,133,466,059.74
  5. Step 5: Solve for x
    x = 574,133,466,059.74/851,318.66
  6. Step 6: Final answer
    x = 674,404.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.