Home / 758,139.75-1,045,379.93-619,887.33

Finding the Fourth Proportional to 758,139.75, 1,045,379.93 and 619,887.33

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Solution

The fourth proportional to 758,139.75, 1,045,379.93 and 619,887.33 is: 854,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,139.75 : 1,045,379.93 = 619,887.33 : x
  2. Step 2: Convert to fraction form
    758,139.75/1,045,379.93 = 619,887.33/x
  3. Step 3: Cross multiply
    758,139.75x = 1,045,379.93 × 619,887.33
  4. Step 4: Simplify right side
    758,139.75x = 648,017,770,543.85
  5. Step 5: Solve for x
    x = 648,017,770,543.85/758,139.75
  6. Step 6: Final answer
    x = 854,747.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.