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Finding the Fourth Proportional to 501,798.72, 692,492.55 and 284,007.38

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Solution

The fourth proportional to 501,798.72, 692,492.55 and 284,007.38 is: 391,936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,798.72 : 692,492.55 = 284,007.38 : x
  2. Step 2: Convert to fraction form
    501,798.72/692,492.55 = 284,007.38/x
  3. Step 3: Cross multiply
    501,798.72x = 692,492.55 × 284,007.38
  4. Step 4: Simplify right side
    501,798.72x = 196,672,992,663.84
  5. Step 5: Solve for x
    x = 196,672,992,663.84/501,798.72
  6. Step 6: Final answer
    x = 391,936.02

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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.