Home / 1,638,277.80-2,457,416.70-920,832.45

Finding the Fourth Proportional to 1,638,277.80, 2,457,416.70 and 920,832.45

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Solution

The fourth proportional to 1,638,277.80, 2,457,416.70 and 920,832.45 is: 1,381,248.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,277.80 : 2,457,416.70 = 920,832.45 : x
  2. Step 2: Convert to fraction form
    1,638,277.80/2,457,416.70 = 920,832.45/x
  3. Step 3: Cross multiply
    1,638,277.80x = 2,457,416.70 × 920,832.45
  4. Step 4: Simplify right side
    1,638,277.80x = 2,262,869,040,531.92
  5. Step 5: Solve for x
    x = 2,262,869,040,531.92/1,638,277.80
  6. Step 6: Final answer
    x = 1,381,248.68

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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.