Home / 999,088.74-1,498,238.64-399,938.22

Finding the Fourth Proportional to 999,088.74, 1,498,238.64 and 399,938.22

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Solution

The fourth proportional to 999,088.74, 1,498,238.64 and 399,938.22 is: 599,749.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,088.74 : 1,498,238.64 = 399,938.22 : x
  2. Step 2: Convert to fraction form
    999,088.74/1,498,238.64 = 399,938.22/x
  3. Step 3: Cross multiply
    999,088.74x = 1,498,238.64 × 399,938.22
  4. Step 4: Simplify right side
    999,088.74x = 599,202,894,816.82
  5. Step 5: Solve for x
    x = 599,202,894,816.82/999,088.74
  6. Step 6: Final answer
    x = 599,749.42

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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.