Home / 1,329,442.20-1,993,745.02-430,675.40

Finding the Fourth Proportional to 1,329,442.20, 1,993,745.02 and 430,675.40

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Solution

The fourth proportional to 1,329,442.20, 1,993,745.02 and 430,675.40 is: 645,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,442.20 : 1,993,745.02 = 430,675.40 : x
  2. Step 2: Convert to fraction form
    1,329,442.20/1,993,745.02 = 430,675.40/x
  3. Step 3: Cross multiply
    1,329,442.20x = 1,993,745.02 × 430,675.40
  4. Step 4: Simplify right side
    1,329,442.20x = 858,656,933,986.51
  5. Step 5: Solve for x
    x = 858,656,933,986.51/1,329,442.20
  6. Step 6: Final answer
    x = 645,877.60

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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.