Home / 1,395,880.07-1,925,823.93-912,728.03

Finding the Fourth Proportional to 1,395,880.07, 1,925,823.93 and 912,728.03

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Solution

The fourth proportional to 1,395,880.07, 1,925,823.93 and 912,728.03 is: 1,259,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,880.07 : 1,925,823.93 = 912,728.03 : x
  2. Step 2: Convert to fraction form
    1,395,880.07/1,925,823.93 = 912,728.03/x
  3. Step 3: Cross multiply
    1,395,880.07x = 1,925,823.93 × 912,728.03
  4. Step 4: Simplify right side
    1,395,880.07x = 1,757,753,481,755.76
  5. Step 5: Solve for x
    x = 1,757,753,481,755.76/1,395,880.07
  6. Step 6: Final answer
    x = 1,259,243.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.