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Finding the Fourth Proportional to 810,625.60, 1,216,069.08 and 249,659.92

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Solution

The fourth proportional to 810,625.60, 1,216,069.08 and 249,659.92 is: 374,530.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,625.60 : 1,216,069.08 = 249,659.92 : x
  2. Step 2: Convert to fraction form
    810,625.60/1,216,069.08 = 249,659.92/x
  3. Step 3: Cross multiply
    810,625.60x = 1,216,069.08 × 249,659.92
  4. Step 4: Simplify right side
    810,625.60x = 303,603,709,227.27
  5. Step 5: Solve for x
    x = 303,603,709,227.27/810,625.60
  6. Step 6: Final answer
    x = 374,530.13

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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.