Home / 367,821.56-507,653.91-306,470.40

Finding the Fourth Proportional to 367,821.56, 507,653.91 and 306,470.40

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Solution

The fourth proportional to 367,821.56, 507,653.91 and 306,470.40 is: 422,979.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,821.56 : 507,653.91 = 306,470.40 : x
  2. Step 2: Convert to fraction form
    367,821.56/507,653.91 = 306,470.40/x
  3. Step 3: Cross multiply
    367,821.56x = 507,653.91 × 306,470.40
  4. Step 4: Simplify right side
    367,821.56x = 155,580,896,859.26
  5. Step 5: Solve for x
    x = 155,580,896,859.26/367,821.56
  6. Step 6: Final answer
    x = 422,979.28

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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.