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Finding the Fourth Proportional to 507,652.20, 700,511.22 and 303,661.80

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Solution

The fourth proportional to 507,652.20, 700,511.22 and 303,661.80 is: 419,024.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,652.20 : 700,511.22 = 303,661.80 : x
  2. Step 2: Convert to fraction form
    507,652.20/700,511.22 = 303,661.80/x
  3. Step 3: Cross multiply
    507,652.20x = 700,511.22 × 303,661.80
  4. Step 4: Simplify right side
    507,652.20x = 212,718,497,985.40
  5. Step 5: Solve for x
    x = 212,718,497,985.40/507,652.20
  6. Step 6: Final answer
    x = 419,024.08

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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.