Home / 2,578,340.72-3,557,901.90-1,490,682.40

Finding the Fourth Proportional to 2,578,340.72, 3,557,901.90 and 1,490,682.40

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Solution

The fourth proportional to 2,578,340.72, 3,557,901.90 and 1,490,682.40 is: 2,057,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,340.72 : 3,557,901.90 = 1,490,682.40 : x
  2. Step 2: Convert to fraction form
    2,578,340.72/3,557,901.90 = 1,490,682.40/x
  3. Step 3: Cross multiply
    2,578,340.72x = 3,557,901.90 × 1,490,682.40
  4. Step 4: Simplify right side
    2,578,340.72x = 5,303,701,742,859.14
  5. Step 5: Solve for x
    x = 5,303,701,742,859.14/2,578,340.72
  6. Step 6: Final answer
    x = 2,057,021.29

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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.