Home / 787,518.09-1,181,293.88-282,111.93

Finding the Fourth Proportional to 787,518.09, 1,181,293.88 and 282,111.93

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Solution

The fourth proportional to 787,518.09, 1,181,293.88 and 282,111.93 is: 423,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,518.09 : 1,181,293.88 = 282,111.93 : x
  2. Step 2: Convert to fraction form
    787,518.09/1,181,293.88 = 282,111.93/x
  3. Step 3: Cross multiply
    787,518.09x = 1,181,293.88 × 282,111.93
  4. Step 4: Simplify right side
    787,518.09x = 333,257,094,973.43
  5. Step 5: Solve for x
    x = 333,257,094,973.43/787,518.09
  6. Step 6: Final answer
    x = 423,173.89

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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.