Home / 678,294.09-936,043.53-372,362.85

Finding the Fourth Proportional to 678,294.09, 936,043.53 and 372,362.85

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Solution

The fourth proportional to 678,294.09, 936,043.53 and 372,362.85 is: 513,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,294.09 : 936,043.53 = 372,362.85 : x
  2. Step 2: Convert to fraction form
    678,294.09/936,043.53 = 372,362.85/x
  3. Step 3: Cross multiply
    678,294.09x = 936,043.53 × 372,362.85
  4. Step 4: Simplify right side
    678,294.09x = 348,547,836,554.86
  5. Step 5: Solve for x
    x = 348,547,836,554.86/678,294.09
  6. Step 6: Final answer
    x = 513,859.46

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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.