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Finding the Fourth Proportional to 609,367.93, 913,509.84 and 289,322.35

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Solution

The fourth proportional to 609,367.93, 913,509.84 and 289,322.35 is: 433,726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,367.93 : 913,509.84 = 289,322.35 : x
  2. Step 2: Convert to fraction form
    609,367.93/913,509.84 = 289,322.35/x
  3. Step 3: Cross multiply
    609,367.93x = 913,509.84 × 289,322.35
  4. Step 4: Simplify right side
    609,367.93x = 264,298,813,656.92
  5. Step 5: Solve for x
    x = 264,298,813,656.92/609,367.93
  6. Step 6: Final answer
    x = 433,726.16

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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.