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Finding the Fourth Proportional to 605,892.47, 908,740.22 and 286,043.72

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Solution

The fourth proportional to 605,892.47, 908,740.22 and 286,043.72 is: 429,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,892.47 : 908,740.22 = 286,043.72 : x
  2. Step 2: Convert to fraction form
    605,892.47/908,740.22 = 286,043.72/x
  3. Step 3: Cross multiply
    605,892.47x = 908,740.22 × 286,043.72
  4. Step 4: Simplify right side
    605,892.47x = 259,939,427,068.50
  5. Step 5: Solve for x
    x = 259,939,427,068.50/605,892.47
  6. Step 6: Final answer
    x = 429,019.08

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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.