Home / 427,582.89-641,560.37-268,024.47

Finding the Fourth Proportional to 427,582.89, 641,560.37 and 268,024.47

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Solution

The fourth proportional to 427,582.89, 641,560.37 and 268,024.47 is: 402,153.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,582.89 : 641,560.37 = 268,024.47 : x
  2. Step 2: Convert to fraction form
    427,582.89/641,560.37 = 268,024.47/x
  3. Step 3: Cross multiply
    427,582.89x = 641,560.37 × 268,024.47
  4. Step 4: Simplify right side
    427,582.89x = 171,953,876,802.13
  5. Step 5: Solve for x
    x = 171,953,876,802.13/427,582.89
  6. Step 6: Final answer
    x = 402,153.32

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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.