Home / 989,015.01-1,484,131.64-389,874.21

Finding the Fourth Proportional to 989,015.01, 1,484,131.64 and 389,874.21

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Solution

The fourth proportional to 989,015.01, 1,484,131.64 and 389,874.21 is: 585,051.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,015.01 : 1,484,131.64 = 389,874.21 : x
  2. Step 2: Convert to fraction form
    989,015.01/1,484,131.64 = 389,874.21/x
  3. Step 3: Cross multiply
    989,015.01x = 1,484,131.64 × 389,874.21
  4. Step 4: Simplify right side
    989,015.01x = 578,624,648,731.63
  5. Step 5: Solve for x
    x = 578,624,648,731.63/989,015.01
  6. Step 6: Final answer
    x = 585,051.43

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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.