Home / 1,179,074.11-1,768,985.01-420,899.35

Finding the Fourth Proportional to 1,179,074.11, 1,768,985.01 and 420,899.35

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Solution

The fourth proportional to 1,179,074.11, 1,768,985.01 and 420,899.35 is: 631,482.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,074.11 : 1,768,985.01 = 420,899.35 : x
  2. Step 2: Convert to fraction form
    1,179,074.11/1,768,985.01 = 420,899.35/x
  3. Step 3: Cross multiply
    1,179,074.11x = 1,768,985.01 × 420,899.35
  4. Step 4: Simplify right side
    1,179,074.11x = 744,564,640,868.74
  5. Step 5: Solve for x
    x = 744,564,640,868.74/1,179,074.11
  6. Step 6: Final answer
    x = 631,482.48

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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.