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Finding the Fourth Proportional to 849,290, 1,274,131.84 and 288,324.50

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Solution

The fourth proportional to 849,290, 1,274,131.84 and 288,324.50 is: 432,553.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,290 : 1,274,131.84 = 288,324.50 : x
  2. Step 2: Convert to fraction form
    849,290/1,274,131.84 = 288,324.50/x
  3. Step 3: Cross multiply
    849,290x = 1,274,131.84 × 288,324.50
  4. Step 4: Simplify right side
    849,290x = 367,363,425,702.08
  5. Step 5: Solve for x
    x = 367,363,425,702.08/849,290
  6. Step 6: Final answer
    x = 432,553.57

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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.