Home / 989,027.40-1,483,395.30-279,127.20

Finding the Fourth Proportional to 989,027.40, 1,483,395.30 and 279,127.20

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Solution

The fourth proportional to 989,027.40, 1,483,395.30 and 279,127.20 is: 418,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,027.40 : 1,483,395.30 = 279,127.20 : x
  2. Step 2: Convert to fraction form
    989,027.40/1,483,395.30 = 279,127.20/x
  3. Step 3: Cross multiply
    989,027.40x = 1,483,395.30 × 279,127.20
  4. Step 4: Simplify right side
    989,027.40x = 414,055,976,582.16
  5. Step 5: Solve for x
    x = 414,055,976,582.16/989,027.40
  6. Step 6: Final answer
    x = 418,649.65

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1.5x scale

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.