Home / 1,105,119.60-1,657,679.40-768,540.30

Finding the Fourth Proportional to 1,105,119.60, 1,657,679.40 and 768,540.30

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Solution

The fourth proportional to 1,105,119.60, 1,657,679.40 and 768,540.30 is: 1,152,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,119.60 : 1,657,679.40 = 768,540.30 : x
  2. Step 2: Convert to fraction form
    1,105,119.60/1,657,679.40 = 768,540.30/x
  3. Step 3: Cross multiply
    1,105,119.60x = 1,657,679.40 × 768,540.30
  4. Step 4: Simplify right side
    1,105,119.60x = 1,273,993,423,379.82
  5. Step 5: Solve for x
    x = 1,273,993,423,379.82/1,105,119.60
  6. Step 6: Final answer
    x = 1,152,810.45

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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.