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Finding the Fourth Proportional to 459,773.70, 689,660.55 and 409,035.30

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Solution

The fourth proportional to 459,773.70, 689,660.55 and 409,035.30 is: 613,552.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,773.70 : 689,660.55 = 409,035.30 : x
  2. Step 2: Convert to fraction form
    459,773.70/689,660.55 = 409,035.30/x
  3. Step 3: Cross multiply
    459,773.70x = 689,660.55 × 409,035.30
  4. Step 4: Simplify right side
    459,773.70x = 282,095,509,967.42
  5. Step 5: Solve for x
    x = 282,095,509,967.42/459,773.70
  6. Step 6: Final answer
    x = 613,552.95

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Similar ratio
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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.