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Finding the Fourth Proportional to 615,692.61, 849,647.50 and 343,764.67

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Solution

The fourth proportional to 615,692.61, 849,647.50 and 343,764.67 is: 474,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,692.61 : 849,647.50 = 343,764.67 : x
  2. Step 2: Convert to fraction form
    615,692.61/849,647.50 = 343,764.67/x
  3. Step 3: Cross multiply
    615,692.61x = 849,647.50 × 343,764.67
  4. Step 4: Simplify right side
    615,692.61x = 292,078,792,453.83
  5. Step 5: Solve for x
    x = 292,078,792,453.83/615,692.61
  6. Step 6: Final answer
    x = 474,390.61

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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.