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Finding the Fourth Proportional to 551,381.70, 826,635.15 and 302,063.70

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Solution

The fourth proportional to 551,381.70, 826,635.15 and 302,063.70 is: 452,855.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,381.70 : 826,635.15 = 302,063.70 : x
  2. Step 2: Convert to fraction form
    551,381.70/826,635.15 = 302,063.70/x
  3. Step 3: Cross multiply
    551,381.70x = 826,635.15 × 302,063.70
  4. Step 4: Simplify right side
    551,381.70x = 249,696,471,959.06
  5. Step 5: Solve for x
    x = 249,696,471,959.06/551,381.70
  6. Step 6: Final answer
    x = 452,855.93

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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.