Home / 1,638,255.40-2,457,383.10-1,478,823.10

Finding the Fourth Proportional to 1,638,255.40, 2,457,383.10 and 1,478,823.10

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Solution

The fourth proportional to 1,638,255.40, 2,457,383.10 and 1,478,823.10 is: 2,218,234.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,255.40 : 2,457,383.10 = 1,478,823.10 : x
  2. Step 2: Convert to fraction form
    1,638,255.40/2,457,383.10 = 1,478,823.10/x
  3. Step 3: Cross multiply
    1,638,255.40x = 2,457,383.10 × 1,478,823.10
  4. Step 4: Simplify right side
    1,638,255.40x = 3,634,034,893,829.61
  5. Step 5: Solve for x
    x = 3,634,034,893,829.61/1,638,255.40
  6. Step 6: Final answer
    x = 2,218,234.65

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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.