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Finding the Fourth Proportional to 658,509.06, 908,742.60 and 356,703.06

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Solution

The fourth proportional to 658,509.06, 908,742.60 and 356,703.06 is: 492,250.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,509.06 : 908,742.60 = 356,703.06 : x
  2. Step 2: Convert to fraction form
    658,509.06/908,742.60 = 356,703.06/x
  3. Step 3: Cross multiply
    658,509.06x = 908,742.60 × 356,703.06
  4. Step 4: Simplify right side
    658,509.06x = 324,151,266,172.36
  5. Step 5: Solve for x
    x = 324,151,266,172.36/658,509.06
  6. Step 6: Final answer
    x = 492,250.28

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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.