Home / 705,805.86-1,058,113.33-306,145.74

Finding the Fourth Proportional to 705,805.86, 1,058,113.33 and 306,145.74

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Solution

The fourth proportional to 705,805.86, 1,058,113.33 and 306,145.74 is: 458,960.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,805.86 : 1,058,113.33 = 306,145.74 : x
  2. Step 2: Convert to fraction form
    705,805.86/1,058,113.33 = 306,145.74/x
  3. Step 3: Cross multiply
    705,805.86x = 1,058,113.33 × 306,145.74
  4. Step 4: Simplify right side
    705,805.86x = 323,936,888,416.71
  5. Step 5: Solve for x
    x = 323,936,888,416.71/705,805.86
  6. Step 6: Final answer
    x = 458,960.33

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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.