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Finding the Fourth Proportional to 626,715.61, 864,871.08 and 368,603.44

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Solution

The fourth proportional to 626,715.61, 864,871.08 and 368,603.44 is: 508,674.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,715.61 : 864,871.08 = 368,603.44 : x
  2. Step 2: Convert to fraction form
    626,715.61/864,871.08 = 368,603.44/x
  3. Step 3: Cross multiply
    626,715.61x = 864,871.08 × 368,603.44
  4. Step 4: Simplify right side
    626,715.61x = 318,794,453,401.50
  5. Step 5: Solve for x
    x = 318,794,453,401.50/626,715.61
  6. Step 6: Final answer
    x = 508,674.83

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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.