Home / 920,735.90-1,270,175.46-715,381.46

Finding the Fourth Proportional to 920,735.90, 1,270,175.46 and 715,381.46

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Solution

The fourth proportional to 920,735.90, 1,270,175.46 and 715,381.46 is: 986,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,735.90 : 1,270,175.46 = 715,381.46 : x
  2. Step 2: Convert to fraction form
    920,735.90/1,270,175.46 = 715,381.46/x
  3. Step 3: Cross multiply
    920,735.90x = 1,270,175.46 × 715,381.46
  4. Step 4: Simplify right side
    920,735.90x = 908,659,975,030.97
  5. Step 5: Solve for x
    x = 908,659,975,030.97/920,735.90
  6. Step 6: Final answer
    x = 986,884.49

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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.