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Finding the Fourth Proportional to 908,299.80, 1,253,359.62 and 559,385

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Solution

The fourth proportional to 908,299.80, 1,253,359.62 and 559,385 is: 771,893.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,299.80 : 1,253,359.62 = 559,385 : x
  2. Step 2: Convert to fraction form
    908,299.80/1,253,359.62 = 559,385/x
  3. Step 3: Cross multiply
    908,299.80x = 1,253,359.62 × 559,385
  4. Step 4: Simplify right side
    908,299.80x = 701,110,571,033.70
  5. Step 5: Solve for x
    x = 701,110,571,033.70/908,299.80
  6. Step 6: Final answer
    x = 771,893.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.