Home / 1,569,431.85-2,354,175.09-432,188.21

Finding the Fourth Proportional to 1,569,431.85, 2,354,175.09 and 432,188.21

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Solution

The fourth proportional to 1,569,431.85, 2,354,175.09 and 432,188.21 is: 648,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569,431.85 : 2,354,175.09 = 432,188.21 : x
  2. Step 2: Convert to fraction form
    1,569,431.85/2,354,175.09 = 432,188.21/x
  3. Step 3: Cross multiply
    1,569,431.85x = 2,354,175.09 × 432,188.21
  4. Step 4: Simplify right side
    1,569,431.85x = 1,017,446,706,402.81
  5. Step 5: Solve for x
    x = 1,017,446,706,402.81/1,569,431.85
  6. Step 6: Final answer
    x = 648,289.83

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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.