Home / 531,900.18-734,020.64-290,181.02

Finding the Fourth Proportional to 531,900.18, 734,020.64 and 290,181.02

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Solution

The fourth proportional to 531,900.18, 734,020.64 and 290,181.02 is: 400,448.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,900.18 : 734,020.64 = 290,181.02 : x
  2. Step 2: Convert to fraction form
    531,900.18/734,020.64 = 290,181.02/x
  3. Step 3: Cross multiply
    531,900.18x = 734,020.64 × 290,181.02
  4. Step 4: Simplify right side
    531,900.18x = 212,998,858,016.25
  5. Step 5: Solve for x
    x = 212,998,858,016.25/531,900.18
  6. Step 6: Final answer
    x = 400,448.93

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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.