Home / 1,221,396.95-1,685,537.03-670,108.93

Finding the Fourth Proportional to 1,221,396.95, 1,685,537.03 and 670,108.93

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Solution

The fourth proportional to 1,221,396.95, 1,685,537.03 and 670,108.93 is: 924,755.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,396.95 : 1,685,537.03 = 670,108.93 : x
  2. Step 2: Convert to fraction form
    1,221,396.95/1,685,537.03 = 670,108.93/x
  3. Step 3: Cross multiply
    1,221,396.95x = 1,685,537.03 × 670,108.93
  4. Step 4: Simplify right side
    1,221,396.95x = 1,129,493,415,648.68
  5. Step 5: Solve for x
    x = 1,129,493,415,648.68/1,221,396.95
  6. Step 6: Final answer
    x = 924,755.39

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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.