Home / 913,837.82-1,370,912.31-458,646.12

Finding the Fourth Proportional to 913,837.82, 1,370,912.31 and 458,646.12

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Solution

The fourth proportional to 913,837.82, 1,370,912.31 and 458,646.12 is: 688,047.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,837.82 : 1,370,912.31 = 458,646.12 : x
  2. Step 2: Convert to fraction form
    913,837.82/1,370,912.31 = 458,646.12/x
  3. Step 3: Cross multiply
    913,837.82x = 1,370,912.31 × 458,646.12
  4. Step 4: Simplify right side
    913,837.82x = 628,763,611,841.74
  5. Step 5: Solve for x
    x = 628,763,611,841.74/913,837.82
  6. Step 6: Final answer
    x = 688,047.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.