Home / 644,942.48-959,294.08-642,784.64

Finding the Fourth Proportional to 644,942.48, 959,294.08 and 642,784.64

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Solution

The fourth proportional to 644,942.48, 959,294.08 and 642,784.64 is: 956,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,942.48 : 959,294.08 = 642,784.64 : x
  2. Step 2: Convert to fraction form
    644,942.48/959,294.08 = 642,784.64/x
  3. Step 3: Cross multiply
    644,942.48x = 959,294.08 × 642,784.64
  4. Step 4: Simplify right side
    644,942.48x = 616,619,499,866.93
  5. Step 5: Solve for x
    x = 616,619,499,866.93/644,942.48
  6. Step 6: Final answer
    x = 956,084.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.