Home / 1,245,003.40-1,869,254.70-772,611.40

Finding the Fourth Proportional to 1,245,003.40, 1,869,254.70 and 772,611.40

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Solution

The fourth proportional to 1,245,003.40, 1,869,254.70 and 772,611.40 is: 1,160,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,003.40 : 1,869,254.70 = 772,611.40 : x
  2. Step 2: Convert to fraction form
    1,245,003.40/1,869,254.70 = 772,611.40/x
  3. Step 3: Cross multiply
    1,245,003.40x = 1,869,254.70 × 772,611.40
  4. Step 4: Simplify right side
    1,245,003.40x = 1,444,207,490,723.58
  5. Step 5: Solve for x
    x = 1,444,207,490,723.58/1,245,003.40
  6. Step 6: Final answer
    x = 1,160,002.85

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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.