Home / 1,418,080.32-2,127,119.40-420,808.32

Finding the Fourth Proportional to 1,418,080.32, 2,127,119.40 and 420,808.32

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Solution

The fourth proportional to 1,418,080.32, 2,127,119.40 and 420,808.32 is: 631,212.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,080.32 : 2,127,119.40 = 420,808.32 : x
  2. Step 2: Convert to fraction form
    1,418,080.32/2,127,119.40 = 420,808.32/x
  3. Step 3: Cross multiply
    1,418,080.32x = 2,127,119.40 × 420,808.32
  4. Step 4: Simplify right side
    1,418,080.32x = 895,109,541,153.41
  5. Step 5: Solve for x
    x = 895,109,541,153.41/1,418,080.32
  6. Step 6: Final answer
    x = 631,212.16

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.