Home / 938,560.68-1,407,971.88-290,189.81

Finding the Fourth Proportional to 938,560.68, 1,407,971.88 and 290,189.81

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Solution

The fourth proportional to 938,560.68, 1,407,971.88 and 290,189.81 is: 435,325.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,560.68 : 1,407,971.88 = 290,189.81 : x
  2. Step 2: Convert to fraction form
    938,560.68/1,407,971.88 = 290,189.81/x
  3. Step 3: Cross multiply
    938,560.68x = 1,407,971.88 × 290,189.81
  4. Step 4: Simplify right side
    938,560.68x = 408,579,084,214.47
  5. Step 5: Solve for x
    x = 408,579,084,214.47/938,560.68
  6. Step 6: Final answer
    x = 435,325.17

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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.