Home / 838,280.22-1,257,420.73-277,314.72

Finding the Fourth Proportional to 838,280.22, 1,257,420.73 and 277,314.72

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Solution

The fourth proportional to 838,280.22, 1,257,420.73 and 277,314.72 is: 415,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,280.22 : 1,257,420.73 = 277,314.72 : x
  2. Step 2: Convert to fraction form
    838,280.22/1,257,420.73 = 277,314.72/x
  3. Step 3: Cross multiply
    838,280.22x = 1,257,420.73 × 277,314.72
  4. Step 4: Simplify right side
    838,280.22x = 348,701,277,662.15
  5. Step 5: Solve for x
    x = 348,701,277,662.15/838,280.22
  6. Step 6: Final answer
    x = 415,972.21

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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.