Home / 989,133.90-1,483,555.05-279,233.70

Finding the Fourth Proportional to 989,133.90, 1,483,555.05 and 279,233.70

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Solution

The fourth proportional to 989,133.90, 1,483,555.05 and 279,233.70 is: 418,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,133.90 : 1,483,555.05 = 279,233.70 : x
  2. Step 2: Convert to fraction form
    989,133.90/1,483,555.05 = 279,233.70/x
  3. Step 3: Cross multiply
    989,133.90x = 1,483,555.05 × 279,233.70
  4. Step 4: Simplify right side
    989,133.90x = 414,258,565,765.19
  5. Step 5: Solve for x
    x = 414,258,565,765.19/989,133.90
  6. Step 6: Final answer
    x = 418,809.39

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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.