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Finding the Fourth Proportional to 658,223.44, 908,349.06 and 356,416.72

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Solution

The fourth proportional to 658,223.44, 908,349.06 and 356,416.72 is: 491,855.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,223.44 : 908,349.06 = 356,416.72 : x
  2. Step 2: Convert to fraction form
    658,223.44/908,349.06 = 356,416.72/x
  3. Step 3: Cross multiply
    658,223.44x = 908,349.06 × 356,416.72
  4. Step 4: Simplify right side
    658,223.44x = 323,750,792,580.28
  5. Step 5: Solve for x
    x = 323,750,792,580.28/658,223.44
  6. Step 6: Final answer
    x = 491,855.46

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1.5x scale

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.