Home / 3,985,725.81-5,979,537.78-1,290,051.48

Finding the Fourth Proportional to 3,985,725.81, 5,979,537.78 and 1,290,051.48

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Solution

The fourth proportional to 3,985,725.81, 5,979,537.78 and 1,290,051.48 is: 1,935,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,725.81 : 5,979,537.78 = 1,290,051.48 : x
  2. Step 2: Convert to fraction form
    3,985,725.81/5,979,537.78 = 1,290,051.48/x
  3. Step 3: Cross multiply
    3,985,725.81x = 5,979,537.78 × 1,290,051.48
  4. Step 4: Simplify right side
    3,985,725.81x = 7,713,911,562,804.92
  5. Step 5: Solve for x
    x = 7,713,911,562,804.92/3,985,725.81
  6. Step 6: Final answer
    x = 1,935,384.40

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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.