Home / 938,759.90-1,407,517.63-339,643.13

Finding the Fourth Proportional to 938,759.90, 1,407,517.63 and 339,643.13

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Solution

The fourth proportional to 938,759.90, 1,407,517.63 and 339,643.13 is: 509,239.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,759.90 : 1,407,517.63 = 339,643.13 : x
  2. Step 2: Convert to fraction form
    938,759.90/1,407,517.63 = 339,643.13/x
  3. Step 3: Cross multiply
    938,759.90x = 1,407,517.63 × 339,643.13
  4. Step 4: Simplify right side
    938,759.90x = 478,053,685,496.69
  5. Step 5: Solve for x
    x = 478,053,685,496.69/938,759.90
  6. Step 6: Final answer
    x = 509,239.57

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1.5x scale

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.