Home / 923,726-1,385,666.76-258,878

Finding the Fourth Proportional to 923,726, 1,385,666.76 and 258,878

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Solution

The fourth proportional to 923,726, 1,385,666.76 and 258,878 is: 388,338.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,726 : 1,385,666.76 = 258,878 : x
  2. Step 2: Convert to fraction form
    923,726/1,385,666.76 = 258,878/x
  3. Step 3: Cross multiply
    923,726x = 1,385,666.76 × 258,878
  4. Step 4: Simplify right side
    923,726x = 358,718,639,495.28
  5. Step 5: Solve for x
    x = 358,718,639,495.28/923,726
  6. Step 6: Final answer
    x = 388,338.79

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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.