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Finding the Fourth Proportional to 459,437.88, 689,102.10 and 122,503.80

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Solution

The fourth proportional to 459,437.88, 689,102.10 and 122,503.80 is: 183,741.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,437.88 : 689,102.10 = 122,503.80 : x
  2. Step 2: Convert to fraction form
    459,437.88/689,102.10 = 122,503.80/x
  3. Step 3: Cross multiply
    459,437.88x = 689,102.10 × 122,503.80
  4. Step 4: Simplify right side
    459,437.88x = 84,417,625,837.98
  5. Step 5: Solve for x
    x = 84,417,625,837.98/459,437.88
  6. Step 6: Final answer
    x = 183,741.11

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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.