Home / 841,906.72-1,262,870.88-280,941.22

Finding the Fourth Proportional to 841,906.72, 1,262,870.88 and 280,941.22

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Solution

The fourth proportional to 841,906.72, 1,262,870.88 and 280,941.22 is: 421,415.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,906.72 : 1,262,870.88 = 280,941.22 : x
  2. Step 2: Convert to fraction form
    841,906.72/1,262,870.88 = 280,941.22/x
  3. Step 3: Cross multiply
    841,906.72x = 1,262,870.88 × 280,941.22
  4. Step 4: Simplify right side
    841,906.72x = 354,792,485,729.67
  5. Step 5: Solve for x
    x = 354,792,485,729.67/841,906.72
  6. Step 6: Final answer
    x = 421,415.43

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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.