Home / 1,328,835.83-1,993,544.43-430,368.39

Finding the Fourth Proportional to 1,328,835.83, 1,993,544.43 and 430,368.39

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Solution

The fourth proportional to 1,328,835.83, 1,993,544.43 and 430,368.39 is: 645,646.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,835.83 : 1,993,544.43 = 430,368.39 : x
  2. Step 2: Convert to fraction form
    1,328,835.83/1,993,544.43 = 430,368.39/x
  3. Step 3: Cross multiply
    1,328,835.83x = 1,993,544.43 × 430,368.39
  4. Step 4: Simplify right side
    1,328,835.83x = 857,958,506,732.57
  5. Step 5: Solve for x
    x = 857,958,506,732.57/1,328,835.83
  6. Step 6: Final answer
    x = 645,646.73

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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.