Home / 1,211,074.60-1,817,648.70-538,191.40

Finding the Fourth Proportional to 1,211,074.60, 1,817,648.70 and 538,191.40

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Solution

The fourth proportional to 1,211,074.60, 1,817,648.70 and 538,191.40 is: 807,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,074.60 : 1,817,648.70 = 538,191.40 : x
  2. Step 2: Convert to fraction form
    1,211,074.60/1,817,648.70 = 538,191.40/x
  3. Step 3: Cross multiply
    1,211,074.60x = 1,817,648.70 × 538,191.40
  4. Step 4: Simplify right side
    1,211,074.60x = 978,242,898,561.18
  5. Step 5: Solve for x
    x = 978,242,898,561.18/1,211,074.60
  6. Step 6: Final answer
    x = 807,747.85

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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.