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Finding the Fourth Proportional to 908,700.89, 1,363,047.68 and 340,124.63

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Solution

The fourth proportional to 908,700.89, 1,363,047.68 and 340,124.63 is: 510,185.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,700.89 : 1,363,047.68 = 340,124.63 : x
  2. Step 2: Convert to fraction form
    908,700.89/1,363,047.68 = 340,124.63/x
  3. Step 3: Cross multiply
    908,700.89x = 1,363,047.68 × 340,124.63
  4. Step 4: Simplify right side
    908,700.89x = 463,606,081,867.43
  5. Step 5: Solve for x
    x = 463,606,081,867.43/908,700.89
  6. Step 6: Final answer
    x = 510,185.57

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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.