Home / 1,768,809.89-2,440,248.89-1,115,220.98

Finding the Fourth Proportional to 1,768,809.89, 2,440,248.89 and 1,115,220.98

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Solution

The fourth proportional to 1,768,809.89, 2,440,248.89 and 1,115,220.98 is: 1,538,558.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768,809.89 : 2,440,248.89 = 1,115,220.98 : x
  2. Step 2: Convert to fraction form
    1,768,809.89/2,440,248.89 = 1,115,220.98/x
  3. Step 3: Cross multiply
    1,768,809.89x = 2,440,248.89 × 1,115,220.98
  4. Step 4: Simplify right side
    1,768,809.89x = 2,721,416,759,074.23
  5. Step 5: Solve for x
    x = 2,721,416,759,074.23/1,768,809.89
  6. Step 6: Final answer
    x = 1,538,558.08

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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.