Home / 680,785.80-1,020,705.82-301,499.84

Finding the Fourth Proportional to 680,785.80, 1,020,705.82 and 301,499.84

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Solution

The fourth proportional to 680,785.80, 1,020,705.82 and 301,499.84 is: 452,040.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,785.80 : 1,020,705.82 = 301,499.84 : x
  2. Step 2: Convert to fraction form
    680,785.80/1,020,705.82 = 301,499.84/x
  3. Step 3: Cross multiply
    680,785.80x = 1,020,705.82 × 301,499.84
  4. Step 4: Simplify right side
    680,785.80x = 307,742,641,417.07
  5. Step 5: Solve for x
    x = 307,742,641,417.07/680,785.80
  6. Step 6: Final answer
    x = 452,040.34

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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.