Home / 971,409.24-1,456,231.74-339,978.60

Finding the Fourth Proportional to 971,409.24, 1,456,231.74 and 339,978.60

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Solution

The fourth proportional to 971,409.24, 1,456,231.74 and 339,978.60 is: 509,659.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,409.24 : 1,456,231.74 = 339,978.60 : x
  2. Step 2: Convert to fraction form
    971,409.24/1,456,231.74 = 339,978.60/x
  3. Step 3: Cross multiply
    971,409.24x = 1,456,231.74 × 339,978.60
  4. Step 4: Simplify right side
    971,409.24x = 495,087,628,240.76
  5. Step 5: Solve for x
    x = 495,087,628,240.76/971,409.24
  6. Step 6: Final answer
    x = 509,659.17

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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.