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Finding the Fourth Proportional to 503,650.90, 695,038.36 and 274,208.20

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Solution

The fourth proportional to 503,650.90, 695,038.36 and 274,208.20 is: 378,407.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,650.90 : 695,038.36 = 274,208.20 : x
  2. Step 2: Convert to fraction form
    503,650.90/695,038.36 = 274,208.20/x
  3. Step 3: Cross multiply
    503,650.90x = 695,038.36 × 274,208.20
  4. Step 4: Simplify right side
    503,650.90x = 190,585,217,626.55
  5. Step 5: Solve for x
    x = 190,585,217,626.55/503,650.90
  6. Step 6: Final answer
    x = 378,407.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.