Home / 989,322.23-1,484,040.76-279,290.81

Finding the Fourth Proportional to 989,322.23, 1,484,040.76 and 279,290.81

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Solution

The fourth proportional to 989,322.23, 1,484,040.76 and 279,290.81 is: 418,952.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,322.23 : 1,484,040.76 = 279,290.81 : x
  2. Step 2: Convert to fraction form
    989,322.23/1,484,040.76 = 279,290.81/x
  3. Step 3: Cross multiply
    989,322.23x = 1,484,040.76 × 279,290.81
  4. Step 4: Simplify right side
    989,322.23x = 414,478,948,945.29
  5. Step 5: Solve for x
    x = 414,478,948,945.29/989,322.23
  6. Step 6: Final answer
    x = 418,952.43

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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.