Home / 778,809.12-1,167,711.48-305,542.32

Finding the Fourth Proportional to 778,809.12, 1,167,711.48 and 305,542.32

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Solution

The fourth proportional to 778,809.12, 1,167,711.48 and 305,542.32 is: 458,116.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,809.12 : 1,167,711.48 = 305,542.32 : x
  2. Step 2: Convert to fraction form
    778,809.12/1,167,711.48 = 305,542.32/x
  3. Step 3: Cross multiply
    778,809.12x = 1,167,711.48 × 305,542.32
  4. Step 4: Simplify right side
    778,809.12x = 356,785,274,689.83
  5. Step 5: Solve for x
    x = 356,785,274,689.83/778,809.12
  6. Step 6: Final answer
    x = 458,116.46

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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.