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Finding the Fourth Proportional to 608,873.61, 913,291.50 and 289,255.50

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Solution

The fourth proportional to 608,873.61, 913,291.50 and 289,255.50 is: 433,874.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,873.61 : 913,291.50 = 289,255.50 : x
  2. Step 2: Convert to fraction form
    608,873.61/913,291.50 = 289,255.50/x
  3. Step 3: Cross multiply
    608,873.61x = 913,291.50 × 289,255.50
  4. Step 4: Simplify right side
    608,873.61x = 264,174,589,478.25
  5. Step 5: Solve for x
    x = 264,174,589,478.25/608,873.61
  6. Step 6: Final answer
    x = 433,874.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.