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Finding the Fourth Proportional to 658,622.22, 908,899.58 and 356,816.22

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Solution

The fourth proportional to 658,622.22, 908,899.58 and 356,816.22 is: 492,406.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,622.22 : 908,899.58 = 356,816.22 : x
  2. Step 2: Convert to fraction form
    658,622.22/908,899.58 = 356,816.22/x
  3. Step 3: Cross multiply
    658,622.22x = 908,899.58 × 356,816.22
  4. Step 4: Simplify right side
    658,622.22x = 324,310,112,495.19
  5. Step 5: Solve for x
    x = 324,310,112,495.19/658,622.22
  6. Step 6: Final answer
    x = 492,406.88

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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.