Home / 1,185,722.20-1,778,813.70-511,802.20

Finding the Fourth Proportional to 1,185,722.20, 1,778,813.70 and 511,802.20

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Solution

The fourth proportional to 1,185,722.20, 1,778,813.70 and 511,802.20 is: 767,802.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,722.20 : 1,778,813.70 = 511,802.20 : x
  2. Step 2: Convert to fraction form
    1,185,722.20/1,778,813.70 = 511,802.20/x
  3. Step 3: Cross multiply
    1,185,722.20x = 1,778,813.70 × 511,802.20
  4. Step 4: Simplify right side
    1,185,722.20x = 910,400,765,050.14
  5. Step 5: Solve for x
    x = 910,400,765,050.14/1,185,722.20
  6. Step 6: Final answer
    x = 767,802.75

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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.