Home / 1,379,411.30-2,069,092.80-620,715.79

Finding the Fourth Proportional to 1,379,411.30, 2,069,092.80 and 620,715.79

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Solution

The fourth proportional to 1,379,411.30, 2,069,092.80 and 620,715.79 is: 931,062.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,411.30 : 2,069,092.80 = 620,715.79 : x
  2. Step 2: Convert to fraction form
    1,379,411.30/2,069,092.80 = 620,715.79/x
  3. Step 3: Cross multiply
    1,379,411.30x = 2,069,092.80 × 620,715.79
  4. Step 4: Simplify right side
    1,379,411.30x = 1,284,318,558,486.27
  5. Step 5: Solve for x
    x = 1,284,318,558,486.27/1,379,411.30
  6. Step 6: Final answer
    x = 931,062.81

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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.