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Finding the Fourth Proportional to 274,340.40, 411,510.60 and 272,590.80

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Solution

The fourth proportional to 274,340.40, 411,510.60 and 272,590.80 is: 408,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,340.40 : 411,510.60 = 272,590.80 : x
  2. Step 2: Convert to fraction form
    274,340.40/411,510.60 = 272,590.80/x
  3. Step 3: Cross multiply
    274,340.40x = 411,510.60 × 272,590.80
  4. Step 4: Simplify right side
    274,340.40x = 112,174,003,662.48
  5. Step 5: Solve for x
    x = 112,174,003,662.48/274,340.40
  6. Step 6: Final answer
    x = 408,886.20

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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.