Home / 1,446,861.89-2,170,081.54-421,916.76

Finding the Fourth Proportional to 1,446,861.89, 2,170,081.54 and 421,916.76

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Solution

The fourth proportional to 1,446,861.89, 2,170,081.54 and 421,916.76 is: 632,813.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446,861.89 : 2,170,081.54 = 421,916.76 : x
  2. Step 2: Convert to fraction form
    1,446,861.89/2,170,081.54 = 421,916.76/x
  3. Step 3: Cross multiply
    1,446,861.89x = 2,170,081.54 × 421,916.76
  4. Step 4: Simplify right side
    1,446,861.89x = 915,593,772,292.61
  5. Step 5: Solve for x
    x = 915,593,772,292.61/1,446,861.89
  6. Step 6: Final answer
    x = 632,813.52

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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.