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Finding the Fourth Proportional to 459,433.98, 689,183.79 and 122,472.90

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Solution

The fourth proportional to 459,433.98, 689,183.79 and 122,472.90 is: 183,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,433.98 : 689,183.79 = 122,472.90 : x
  2. Step 2: Convert to fraction form
    459,433.98/689,183.79 = 122,472.90/x
  3. Step 3: Cross multiply
    459,433.98x = 689,183.79 × 122,472.90
  4. Step 4: Simplify right side
    459,433.98x = 84,406,337,394.29
  5. Step 5: Solve for x
    x = 84,406,337,394.29/459,433.98
  6. Step 6: Final answer
    x = 183,718.10

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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.