Home / 1,344,638.87-2,016,954.11-421,465.13

Finding the Fourth Proportional to 1,344,638.87, 2,016,954.11 and 421,465.13

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Solution

The fourth proportional to 1,344,638.87, 2,016,954.11 and 421,465.13 is: 632,196.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,638.87 : 2,016,954.11 = 421,465.13 : x
  2. Step 2: Convert to fraction form
    1,344,638.87/2,016,954.11 = 421,465.13/x
  3. Step 3: Cross multiply
    1,344,638.87x = 2,016,954.11 × 421,465.13
  4. Step 4: Simplify right side
    1,344,638.87x = 850,075,817,144.08
  5. Step 5: Solve for x
    x = 850,075,817,144.08/1,344,638.87
  6. Step 6: Final answer
    x = 632,196.38

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Double scale
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Similar ratio
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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.