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Finding the Fourth Proportional to 637,257.42, 879,312.33 and 365,275.26

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Solution

The fourth proportional to 637,257.42, 879,312.33 and 365,275.26 is: 504,020.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,257.42 : 879,312.33 = 365,275.26 : x
  2. Step 2: Convert to fraction form
    637,257.42/879,312.33 = 365,275.26/x
  3. Step 3: Cross multiply
    637,257.42x = 879,312.33 × 365,275.26
  4. Step 4: Simplify right side
    637,257.42x = 321,191,039,961.96
  5. Step 5: Solve for x
    x = 321,191,039,961.96/637,257.42
  6. Step 6: Final answer
    x = 504,020.87

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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.