Home / 1,069,361.12-1,603,916.82-429,638.96

Finding the Fourth Proportional to 1,069,361.12, 1,603,916.82 and 429,638.96

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Solution

The fourth proportional to 1,069,361.12, 1,603,916.82 and 429,638.96 is: 644,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,361.12 : 1,603,916.82 = 429,638.96 : x
  2. Step 2: Convert to fraction form
    1,069,361.12/1,603,916.82 = 429,638.96/x
  3. Step 3: Cross multiply
    1,069,361.12x = 1,603,916.82 × 429,638.96
  4. Step 4: Simplify right side
    1,069,361.12x = 689,105,154,471.31
  5. Step 5: Solve for x
    x = 689,105,154,471.31/1,069,361.12
  6. Step 6: Final answer
    x = 644,408.27

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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.