Home / 1,328,570.10-1,993,049.55-429,858.90

Finding the Fourth Proportional to 1,328,570.10, 1,993,049.55 and 429,858.90

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Solution

The fourth proportional to 1,328,570.10, 1,993,049.55 and 429,858.90 is: 644,851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,570.10 : 1,993,049.55 = 429,858.90 : x
  2. Step 2: Convert to fraction form
    1,328,570.10/1,993,049.55 = 429,858.90/x
  3. Step 3: Cross multiply
    1,328,570.10x = 1,993,049.55 × 429,858.90
  4. Step 4: Simplify right side
    1,328,570.10x = 856,730,087,208.50
  5. Step 5: Solve for x
    x = 856,730,087,208.50/1,328,570.10
  6. Step 6: Final answer
    x = 644,851.25

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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.