Home / 1,638,200.90-2,457,301.35-1,478,768.60

Finding the Fourth Proportional to 1,638,200.90, 2,457,301.35 and 1,478,768.60

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Solution

The fourth proportional to 1,638,200.90, 2,457,301.35 and 1,478,768.60 is: 2,218,152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,200.90 : 2,457,301.35 = 1,478,768.60 : x
  2. Step 2: Convert to fraction form
    1,638,200.90/2,457,301.35 = 1,478,768.60/x
  3. Step 3: Cross multiply
    1,638,200.90x = 2,457,301.35 × 1,478,768.60
  4. Step 4: Simplify right side
    1,638,200.90x = 3,633,780,077,117.61
  5. Step 5: Solve for x
    x = 3,633,780,077,117.61/1,638,200.90
  6. Step 6: Final answer
    x = 2,218,152.90

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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.