Home / 807,457.40-1,211,186.10-763,911.80

Finding the Fourth Proportional to 807,457.40, 1,211,186.10 and 763,911.80

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Solution

The fourth proportional to 807,457.40, 1,211,186.10 and 763,911.80 is: 1,145,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,457.40 : 1,211,186.10 = 763,911.80 : x
  2. Step 2: Convert to fraction form
    807,457.40/1,211,186.10 = 763,911.80/x
  3. Step 3: Cross multiply
    807,457.40x = 1,211,186.10 × 763,911.80
  4. Step 4: Simplify right side
    807,457.40x = 925,239,353,785.98
  5. Step 5: Solve for x
    x = 925,239,353,785.98/807,457.40
  6. Step 6: Final answer
    x = 1,145,867.70

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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.