Home / 1,008,085.35-1,512,128.03-889,987.35

Finding the Fourth Proportional to 1,008,085.35, 1,512,128.03 and 889,987.35

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Solution

The fourth proportional to 1,008,085.35, 1,512,128.03 and 889,987.35 is: 1,334,981.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,085.35 : 1,512,128.03 = 889,987.35 : x
  2. Step 2: Convert to fraction form
    1,008,085.35/1,512,128.03 = 889,987.35/x
  3. Step 3: Cross multiply
    1,008,085.35x = 1,512,128.03 × 889,987.35
  4. Step 4: Simplify right side
    1,008,085.35x = 1,345,774,813,830.48
  5. Step 5: Solve for x
    x = 1,345,774,813,830.48/1,008,085.35
  6. Step 6: Final answer
    x = 1,334,981.03

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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.