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Finding the Fourth Proportional to 424,646.72, 637,108.32 and 203,048

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Solution

The fourth proportional to 424,646.72, 637,108.32 and 203,048 is: 304,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,646.72 : 637,108.32 = 203,048 : x
  2. Step 2: Convert to fraction form
    424,646.72/637,108.32 = 203,048/x
  3. Step 3: Cross multiply
    424,646.72x = 637,108.32 × 203,048
  4. Step 4: Simplify right side
    424,646.72x = 129,363,570,159.36
  5. Step 5: Solve for x
    x = 129,363,570,159.36/424,646.72
  6. Step 6: Final answer
    x = 304,638.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.