Home / 557,823.84-835,816.26-321,365.40

Finding the Fourth Proportional to 557,823.84, 835,816.26 and 321,365.40

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Solution

The fourth proportional to 557,823.84, 835,816.26 and 321,365.40 is: 481,518.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,823.84 : 835,816.26 = 321,365.40 : x
  2. Step 2: Convert to fraction form
    557,823.84/835,816.26 = 321,365.40/x
  3. Step 3: Cross multiply
    557,823.84x = 835,816.26 × 321,365.40
  4. Step 4: Simplify right side
    557,823.84x = 268,602,426,721.40
  5. Step 5: Solve for x
    x = 268,602,426,721.40/557,823.84
  6. Step 6: Final answer
    x = 481,518.37

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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.