Home / 461,928.72-637,029-306,605.28

Finding the Fourth Proportional to 461,928.72, 637,029 and 306,605.28

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Solution

The fourth proportional to 461,928.72, 637,029 and 306,605.28 is: 422,828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,928.72 : 637,029 = 306,605.28 : x
  2. Step 2: Convert to fraction form
    461,928.72/637,029 = 306,605.28/x
  3. Step 3: Cross multiply
    461,928.72x = 637,029 × 306,605.28
  4. Step 4: Simplify right side
    461,928.72x = 195,316,454,913.12
  5. Step 5: Solve for x
    x = 195,316,454,913.12/461,928.72
  6. Step 6: Final answer
    x = 422,828.13

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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.