Home / 1,007,084.10-1,387,128.63-774,065.43

Finding the Fourth Proportional to 1,007,084.10, 1,387,128.63 and 774,065.43

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Solution

The fourth proportional to 1,007,084.10, 1,387,128.63 and 774,065.43 is: 1,066,175.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,084.10 : 1,387,128.63 = 774,065.43 : x
  2. Step 2: Convert to fraction form
    1,007,084.10/1,387,128.63 = 774,065.43/x
  3. Step 3: Cross multiply
    1,007,084.10x = 1,387,128.63 × 774,065.43
  4. Step 4: Simplify right side
    1,007,084.10x = 1,073,728,319,446.26
  5. Step 5: Solve for x
    x = 1,073,728,319,446.26/1,007,084.10
  6. Step 6: Final answer
    x = 1,066,175.43

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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.