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Finding the Fourth Proportional to 496,244.84, 684,804.90 and 289,552.76

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Solution

The fourth proportional to 496,244.84, 684,804.90 and 289,552.76 is: 399,575.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,244.84 : 684,804.90 = 289,552.76 : x
  2. Step 2: Convert to fraction form
    496,244.84/684,804.90 = 289,552.76/x
  3. Step 3: Cross multiply
    496,244.84x = 684,804.90 × 289,552.76
  4. Step 4: Simplify right side
    496,244.84x = 198,287,148,856.52
  5. Step 5: Solve for x
    x = 198,287,148,856.52/496,244.84
  6. Step 6: Final answer
    x = 399,575.24

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Double scale
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Similar ratio
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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.