Home / 678,260.30-936,043.47-391,792.46

Finding the Fourth Proportional to 678,260.30, 936,043.47 and 391,792.46

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Solution

The fourth proportional to 678,260.30, 936,043.47 and 391,792.46 is: 540,699.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,260.30 : 936,043.47 = 391,792.46 : x
  2. Step 2: Convert to fraction form
    678,260.30/936,043.47 = 391,792.46/x
  3. Step 3: Cross multiply
    678,260.30x = 936,043.47 × 391,792.46
  4. Step 4: Simplify right side
    678,260.30x = 366,734,773,778.24
  5. Step 5: Solve for x
    x = 366,734,773,778.24/678,260.30
  6. Step 6: Final answer
    x = 540,699.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.