Home / 1,379,729.20-2,069,594.38-620,684.08

Finding the Fourth Proportional to 1,379,729.20, 2,069,594.38 and 620,684.08

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Solution

The fourth proportional to 1,379,729.20, 2,069,594.38 and 620,684.08 is: 931,026.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,729.20 : 2,069,594.38 = 620,684.08 : x
  2. Step 2: Convert to fraction form
    1,379,729.20/2,069,594.38 = 620,684.08/x
  3. Step 3: Cross multiply
    1,379,729.20x = 2,069,594.38 × 620,684.08
  4. Step 4: Simplify right side
    1,379,729.20x = 1,284,564,283,723.47
  5. Step 5: Solve for x
    x = 1,284,564,283,723.47/1,379,729.20
  6. Step 6: Final answer
    x = 931,026.38

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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.