Home / 459,519.04-689,311.32-122,557.78

Finding the Fourth Proportional to 459,519.04, 689,311.32 and 122,557.78

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Solution

The fourth proportional to 459,519.04, 689,311.32 and 122,557.78 is: 183,845.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,519.04 : 689,311.32 = 122,557.78 : x
  2. Step 2: Convert to fraction form
    459,519.04/689,311.32 = 122,557.78/x
  3. Step 3: Cross multiply
    459,519.04x = 689,311.32 × 122,557.78
  4. Step 4: Simplify right side
    459,519.04x = 84,480,465,108.07
  5. Step 5: Solve for x
    x = 84,480,465,108.07/459,519.04
  6. Step 6: Final answer
    x = 183,845.41

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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.