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Finding the Fourth Proportional to 464,896.47, 640,829.28 and 303,670.83

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Solution

The fourth proportional to 464,896.47, 640,829.28 and 303,670.83 is: 418,590.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,896.47 : 640,829.28 = 303,670.83 : x
  2. Step 2: Convert to fraction form
    464,896.47/640,829.28 = 303,670.83/x
  3. Step 3: Cross multiply
    464,896.47x = 640,829.28 × 303,670.83
  4. Step 4: Simplify right side
    464,896.47x = 194,601,159,345.90
  5. Step 5: Solve for x
    x = 194,601,159,345.90/464,896.47
  6. Step 6: Final answer
    x = 418,590.31

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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.