Home / 1,235,784.70-1,854,770.55-729,712.90

Finding the Fourth Proportional to 1,235,784.70, 1,854,770.55 and 729,712.90

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Solution

The fourth proportional to 1,235,784.70, 1,854,770.55 and 729,712.90 is: 1,095,215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,784.70 : 1,854,770.55 = 729,712.90 : x
  2. Step 2: Convert to fraction form
    1,235,784.70/1,854,770.55 = 729,712.90/x
  3. Step 3: Cross multiply
    1,235,784.70x = 1,854,770.55 × 729,712.90
  4. Step 4: Simplify right side
    1,235,784.70x = 1,353,449,996,875.10
  5. Step 5: Solve for x
    x = 1,353,449,996,875.10/1,235,784.70
  6. Step 6: Final answer
    x = 1,095,215.05

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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.