Home / 1,379,264.67-2,066,206.98-778,408.29

Finding the Fourth Proportional to 1,379,264.67, 2,066,206.98 and 778,408.29

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Solution

The fourth proportional to 1,379,264.67, 2,066,206.98 and 778,408.29 is: 1,166,094.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,264.67 : 2,066,206.98 = 778,408.29 : x
  2. Step 2: Convert to fraction form
    1,379,264.67/2,066,206.98 = 778,408.29/x
  3. Step 3: Cross multiply
    1,379,264.67x = 2,066,206.98 × 778,408.29
  4. Step 4: Simplify right side
    1,379,264.67x = 1,608,352,642,087.86
  5. Step 5: Solve for x
    x = 1,608,352,642,087.86/1,379,264.67
  6. Step 6: Final answer
    x = 1,166,094.28

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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.