Home / 1,328,811.33-1,993,534.50-430,254.06

Finding the Fourth Proportional to 1,328,811.33, 1,993,534.50 and 430,254.06

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Solution

The fourth proportional to 1,328,811.33, 1,993,534.50 and 430,254.06 is: 645,483.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,811.33 : 1,993,534.50 = 430,254.06 : x
  2. Step 2: Convert to fraction form
    1,328,811.33/1,993,534.50 = 430,254.06/x
  3. Step 3: Cross multiply
    1,328,811.33x = 1,993,534.50 × 430,254.06
  4. Step 4: Simplify right side
    1,328,811.33x = 857,726,312,375.07
  5. Step 5: Solve for x
    x = 857,726,312,375.07/1,328,811.33
  6. Step 6: Final answer
    x = 645,483.89

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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.