Home / 2,638,509.60-3,957,764.40-1,221,333.60

Finding the Fourth Proportional to 2,638,509.60, 3,957,764.40 and 1,221,333.60

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Solution

The fourth proportional to 2,638,509.60, 3,957,764.40 and 1,221,333.60 is: 1,832,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,509.60 : 3,957,764.40 = 1,221,333.60 : x
  2. Step 2: Convert to fraction form
    2,638,509.60/3,957,764.40 = 1,221,333.60/x
  3. Step 3: Cross multiply
    2,638,509.60x = 3,957,764.40 × 1,221,333.60
  4. Step 4: Simplify right side
    2,638,509.60x = 4,833,750,642,603.84
  5. Step 5: Solve for x
    x = 4,833,750,642,603.84/2,638,509.60
  6. Step 6: Final answer
    x = 1,832,000.40

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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.