Home / 459,385.47-689,023.53-122,451.39

Finding the Fourth Proportional to 459,385.47, 689,023.53 and 122,451.39

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Solution

The fourth proportional to 459,385.47, 689,023.53 and 122,451.39 is: 183,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,385.47 : 689,023.53 = 122,451.39 : x
  2. Step 2: Convert to fraction form
    459,385.47/689,023.53 = 122,451.39/x
  3. Step 3: Cross multiply
    459,385.47x = 689,023.53 × 122,451.39
  4. Step 4: Simplify right side
    459,385.47x = 84,371,888,991.21
  5. Step 5: Solve for x
    x = 84,371,888,991.21/459,385.47
  6. Step 6: Final answer
    x = 183,662.51

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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.