Home / 1,325,126.40-1,987,689.60-483,705.60

Finding the Fourth Proportional to 1,325,126.40, 1,987,689.60 and 483,705.60

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Solution

The fourth proportional to 1,325,126.40, 1,987,689.60 and 483,705.60 is: 725,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,126.40 : 1,987,689.60 = 483,705.60 : x
  2. Step 2: Convert to fraction form
    1,325,126.40/1,987,689.60 = 483,705.60/x
  3. Step 3: Cross multiply
    1,325,126.40x = 1,987,689.60 × 483,705.60
  4. Step 4: Simplify right side
    1,325,126.40x = 961,456,590,581.76
  5. Step 5: Solve for x
    x = 961,456,590,581.76/1,325,126.40
  6. Step 6: Final answer
    x = 725,558.40

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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.