Home / 1,383,519.05-2,075,340.74-423,904.35

Finding the Fourth Proportional to 1,383,519.05, 2,075,340.74 and 423,904.35

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Solution

The fourth proportional to 1,383,519.05, 2,075,340.74 and 423,904.35 is: 635,875.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,519.05 : 2,075,340.74 = 423,904.35 : x
  2. Step 2: Convert to fraction form
    1,383,519.05/2,075,340.74 = 423,904.35/x
  3. Step 3: Cross multiply
    1,383,519.05x = 2,075,340.74 × 423,904.35
  4. Step 4: Simplify right side
    1,383,519.05x = 879,745,965,298.70
  5. Step 5: Solve for x
    x = 879,745,965,298.70/1,383,519.05
  6. Step 6: Final answer
    x = 635,875.57

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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.