Home / 949,419.78-1,424,126.07-388,454.10

Finding the Fourth Proportional to 949,419.78, 1,424,126.07 and 388,454.10

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Solution

The fourth proportional to 949,419.78, 1,424,126.07 and 388,454.10 is: 582,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,419.78 : 1,424,126.07 = 388,454.10 : x
  2. Step 2: Convert to fraction form
    949,419.78/1,424,126.07 = 388,454.10/x
  3. Step 3: Cross multiply
    949,419.78x = 1,424,126.07 × 388,454.10
  4. Step 4: Simplify right side
    949,419.78x = 553,207,610,808.39
  5. Step 5: Solve for x
    x = 553,207,610,808.39/949,419.78
  6. Step 6: Final answer
    x = 582,679.68

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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.