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Finding the Fourth Proportional to 565,499.88, 779,811.30 and 374,443.56

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Solution

The fourth proportional to 565,499.88, 779,811.30 and 374,443.56 is: 516,349.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,499.88 : 779,811.30 = 374,443.56 : x
  2. Step 2: Convert to fraction form
    565,499.88/779,811.30 = 374,443.56/x
  3. Step 3: Cross multiply
    565,499.88x = 779,811.30 × 374,443.56
  4. Step 4: Simplify right side
    565,499.88x = 291,995,319,300.23
  5. Step 5: Solve for x
    x = 291,995,319,300.23/565,499.88
  6. Step 6: Final answer
    x = 516,349.04

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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.