Home / 989,029.26-1,484,153.01-389,888.46

Finding the Fourth Proportional to 989,029.26, 1,484,153.01 and 389,888.46

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Solution

The fourth proportional to 989,029.26, 1,484,153.01 and 389,888.46 is: 585,072.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,029.26 : 1,484,153.01 = 389,888.46 : x
  2. Step 2: Convert to fraction form
    989,029.26/1,484,153.01 = 389,888.46/x
  3. Step 3: Cross multiply
    989,029.26x = 1,484,153.01 × 389,888.46
  4. Step 4: Simplify right side
    989,029.26x = 578,654,131,473.27
  5. Step 5: Solve for x
    x = 578,654,131,473.27/989,029.26
  6. Step 6: Final answer
    x = 585,072.81

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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.