Home / 938,418.84-1,407,825.09-406,015.56

Finding the Fourth Proportional to 938,418.84, 1,407,825.09 and 406,015.56

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Solution

The fourth proportional to 938,418.84, 1,407,825.09 and 406,015.56 is: 609,108.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,418.84 : 1,407,825.09 = 406,015.56 : x
  2. Step 2: Convert to fraction form
    938,418.84/1,407,825.09 = 406,015.56/x
  3. Step 3: Cross multiply
    938,418.84x = 1,407,825.09 × 406,015.56
  4. Step 4: Simplify right side
    938,418.84x = 571,598,892,298.40
  5. Step 5: Solve for x
    x = 571,598,892,298.40/938,418.84
  6. Step 6: Final answer
    x = 609,108.50

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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.