Home / 859,955.13-1,289,935.43-260,921.25

Finding the Fourth Proportional to 859,955.13, 1,289,935.43 and 260,921.25

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Solution

The fourth proportional to 859,955.13, 1,289,935.43 and 260,921.25 is: 391,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,955.13 : 1,289,935.43 = 260,921.25 : x
  2. Step 2: Convert to fraction form
    859,955.13/1,289,935.43 = 260,921.25/x
  3. Step 3: Cross multiply
    859,955.13x = 1,289,935.43 × 260,921.25
  4. Step 4: Simplify right side
    859,955.13x = 336,571,564,488.74
  5. Step 5: Solve for x
    x = 336,571,564,488.74/859,955.13
  6. Step 6: Final answer
    x = 391,382.70

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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.