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Finding the Fourth Proportional to 565,579.54, 780,239.68 and 501,114.07

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Solution

The fourth proportional to 565,579.54, 780,239.68 and 501,114.07 is: 691,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,579.54 : 780,239.68 = 501,114.07 : x
  2. Step 2: Convert to fraction form
    565,579.54/780,239.68 = 501,114.07/x
  3. Step 3: Cross multiply
    565,579.54x = 780,239.68 × 501,114.07
  4. Step 4: Simplify right side
    565,579.54x = 390,989,081,620.30
  5. Step 5: Solve for x
    x = 390,989,081,620.30/565,579.54
  6. Step 6: Final answer
    x = 691,306.98

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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.