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Finding the Fourth Proportional to 565,586.82, 780,249.66 and 501,121.32

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Solution

The fourth proportional to 565,586.82, 780,249.66 and 501,121.32 is: 691,316.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,586.82 : 780,249.66 = 501,121.32 : x
  2. Step 2: Convert to fraction form
    565,586.82/780,249.66 = 501,121.32/x
  3. Step 3: Cross multiply
    565,586.82x = 780,249.66 × 501,121.32
  4. Step 4: Simplify right side
    565,586.82x = 390,999,739,548.75
  5. Step 5: Solve for x
    x = 390,999,739,548.75/565,586.82
  6. Step 6: Final answer
    x = 691,316.92

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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.