Home / 1,380,495.56-2,070,665.45-611,771.86

Finding the Fourth Proportional to 1,380,495.56, 2,070,665.45 and 611,771.86

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Solution

The fourth proportional to 1,380,495.56, 2,070,665.45 and 611,771.86 is: 917,623.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,495.56 : 2,070,665.45 = 611,771.86 : x
  2. Step 2: Convert to fraction form
    1,380,495.56/2,070,665.45 = 611,771.86/x
  3. Step 3: Cross multiply
    1,380,495.56x = 2,070,665.45 × 611,771.86
  4. Step 4: Simplify right side
    1,380,495.56x = 1,266,774,859,710.99
  5. Step 5: Solve for x
    x = 1,266,774,859,710.99/1,380,495.56
  6. Step 6: Final answer
    x = 917,623.28

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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.