Home / 1,500,195-2,070,288.54-821,116.92

Finding the Fourth Proportional to 1,500,195, 2,070,288.54 and 821,116.92

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Solution

The fourth proportional to 1,500,195, 2,070,288.54 and 821,116.92 is: 1,133,151.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,195 : 2,070,288.54 = 821,116.92 : x
  2. Step 2: Convert to fraction form
    1,500,195/2,070,288.54 = 821,116.92/x
  3. Step 3: Cross multiply
    1,500,195x = 2,070,288.54 × 821,116.92
  4. Step 4: Simplify right side
    1,500,195x = 1,699,948,949,476.10
  5. Step 5: Solve for x
    x = 1,699,948,949,476.10/1,500,195
  6. Step 6: Final answer
    x = 1,133,151.99

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Double scale
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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.