Home / 459,387.72-689,026.91-122,453.64

Finding the Fourth Proportional to 459,387.72, 689,026.91 and 122,453.64

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Solution

The fourth proportional to 459,387.72, 689,026.91 and 122,453.64 is: 183,665.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,387.72 : 689,026.91 = 122,453.64 : x
  2. Step 2: Convert to fraction form
    459,387.72/689,026.91 = 122,453.64/x
  3. Step 3: Cross multiply
    459,387.72x = 689,026.91 × 122,453.64
  4. Step 4: Simplify right side
    459,387.72x = 84,373,852,575.18
  5. Step 5: Solve for x
    x = 84,373,852,575.18/459,387.72
  6. Step 6: Final answer
    x = 183,665.89

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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.