Home / 1,432,065.29-2,147,765.29-420,916.77

Finding the Fourth Proportional to 1,432,065.29, 2,147,765.29 and 420,916.77

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Solution

The fourth proportional to 1,432,065.29, 2,147,765.29 and 420,916.77 is: 631,277.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,065.29 : 2,147,765.29 = 420,916.77 : x
  2. Step 2: Convert to fraction form
    1,432,065.29/2,147,765.29 = 420,916.77/x
  3. Step 3: Cross multiply
    1,432,065.29x = 2,147,765.29 × 420,916.77
  4. Step 4: Simplify right side
    1,432,065.29x = 904,030,427,532.62
  5. Step 5: Solve for x
    x = 904,030,427,532.62/1,432,065.29
  6. Step 6: Final answer
    x = 631,277.38

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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.