Home / 1,001,921.46-1,382,860.26-921,221.16

Finding the Fourth Proportional to 1,001,921.46, 1,382,860.26 and 921,221.16

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Solution

The fourth proportional to 1,001,921.46, 1,382,860.26 and 921,221.16 is: 1,271,477.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,921.46 : 1,382,860.26 = 921,221.16 : x
  2. Step 2: Convert to fraction form
    1,001,921.46/1,382,860.26 = 921,221.16/x
  3. Step 3: Cross multiply
    1,001,921.46x = 1,382,860.26 × 921,221.16
  4. Step 4: Simplify right side
    1,001,921.46x = 1,273,920,132,835.10
  5. Step 5: Solve for x
    x = 1,273,920,132,835.10/1,001,921.46
  6. Step 6: Final answer
    x = 1,271,477.04

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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.