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Finding the Fourth Proportional to 658,702.95, 909,010.67 and 356,896.95

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Solution

The fourth proportional to 658,702.95, 909,010.67 and 356,896.95 is: 492,518.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,702.95 : 909,010.67 = 356,896.95 : x
  2. Step 2: Convert to fraction form
    658,702.95/909,010.67 = 356,896.95/x
  3. Step 3: Cross multiply
    658,702.95x = 909,010.67 × 356,896.95
  4. Step 4: Simplify right side
    658,702.95x = 324,423,135,640.46
  5. Step 5: Solve for x
    x = 324,423,135,640.46/658,702.95
  6. Step 6: Final answer
    x = 492,518.12

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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.