Home / 680,399.39-1,020,828.52-301,268.36

Finding the Fourth Proportional to 680,399.39, 1,020,828.52 and 301,268.36

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Solution

The fourth proportional to 680,399.39, 1,020,828.52 and 301,268.36 is: 452,004.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,399.39 : 1,020,828.52 = 301,268.36 : x
  2. Step 2: Convert to fraction form
    680,399.39/1,020,828.52 = 301,268.36/x
  3. Step 3: Cross multiply
    680,399.39x = 1,020,828.52 × 301,268.36
  4. Step 4: Simplify right side
    680,399.39x = 307,543,334,061.63
  5. Step 5: Solve for x
    x = 307,543,334,061.63/680,399.39
  6. Step 6: Final answer
    x = 452,004.13

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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.