Home / 778,810.12-1,167,712.98-305,543.32

Finding the Fourth Proportional to 778,810.12, 1,167,712.98 and 305,543.32

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Solution

The fourth proportional to 778,810.12, 1,167,712.98 and 305,543.32 is: 458,117.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,810.12 : 1,167,712.98 = 305,543.32 : x
  2. Step 2: Convert to fraction form
    778,810.12/1,167,712.98 = 305,543.32/x
  3. Step 3: Cross multiply
    778,810.12x = 1,167,712.98 × 305,543.32
  4. Step 4: Simplify right side
    778,810.12x = 356,786,900,716.29
  5. Step 5: Solve for x
    x = 356,786,900,716.29/778,810.12
  6. Step 6: Final answer
    x = 458,117.96

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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.