Home / 1,418,140.32-2,127,209.40-420,868.32

Finding the Fourth Proportional to 1,418,140.32, 2,127,209.40 and 420,868.32

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Solution

The fourth proportional to 1,418,140.32, 2,127,209.40 and 420,868.32 is: 631,302.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,140.32 : 2,127,209.40 = 420,868.32 : x
  2. Step 2: Convert to fraction form
    1,418,140.32/2,127,209.40 = 420,868.32/x
  3. Step 3: Cross multiply
    1,418,140.32x = 2,127,209.40 × 420,868.32
  4. Step 4: Simplify right side
    1,418,140.32x = 895,275,046,466.21
  5. Step 5: Solve for x
    x = 895,275,046,466.21/1,418,140.32
  6. Step 6: Final answer
    x = 631,302.16

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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.