Home / 1,189,145.27-1,641,012.14-645,267.23

Finding the Fourth Proportional to 1,189,145.27, 1,641,012.14 and 645,267.23

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Solution

The fourth proportional to 1,189,145.27, 1,641,012.14 and 645,267.23 is: 890,464.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,145.27 : 1,641,012.14 = 645,267.23 : x
  2. Step 2: Convert to fraction form
    1,189,145.27/1,641,012.14 = 645,267.23/x
  3. Step 3: Cross multiply
    1,189,145.27x = 1,641,012.14 × 645,267.23
  4. Step 4: Simplify right side
    1,189,145.27x = 1,058,891,351,382.28
  5. Step 5: Solve for x
    x = 1,058,891,351,382.28/1,189,145.27
  6. Step 6: Final answer
    x = 890,464.25

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1.5x scale

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.