Home / 788,550.84-1,088,199.09-449,019.09

Finding the Fourth Proportional to 788,550.84, 1,088,199.09 and 449,019.09

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Solution

The fourth proportional to 788,550.84, 1,088,199.09 and 449,019.09 is: 619,645.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,550.84 : 1,088,199.09 = 449,019.09 : x
  2. Step 2: Convert to fraction form
    788,550.84/1,088,199.09 = 449,019.09/x
  3. Step 3: Cross multiply
    788,550.84x = 1,088,199.09 × 449,019.09
  4. Step 4: Simplify right side
    788,550.84x = 488,622,165,130.63
  5. Step 5: Solve for x
    x = 488,622,165,130.63/788,550.84
  6. Step 6: Final answer
    x = 619,645.74

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Double scale
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1.5x scale

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.