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Finding the Fourth Proportional to 637,018.48, 879,121.79 and 365,131.59

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Solution

The fourth proportional to 637,018.48, 879,121.79 and 365,131.59 is: 503,902.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,018.48 : 879,121.79 = 365,131.59 : x
  2. Step 2: Convert to fraction form
    637,018.48/879,121.79 = 365,131.59/x
  3. Step 3: Cross multiply
    637,018.48x = 879,121.79 × 365,131.59
  4. Step 4: Simplify right side
    637,018.48x = 320,995,136,986.35
  5. Step 5: Solve for x
    x = 320,995,136,986.35/637,018.48
  6. Step 6: Final answer
    x = 503,902.39

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1.5x scale

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.