Home / 1,340,509.72-2,010,132.81-486,979.51

Finding the Fourth Proportional to 1,340,509.72, 2,010,132.81 and 486,979.51

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Solution

The fourth proportional to 1,340,509.72, 2,010,132.81 and 486,979.51 is: 730,239.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,509.72 : 2,010,132.81 = 486,979.51 : x
  2. Step 2: Convert to fraction form
    1,340,509.72/2,010,132.81 = 486,979.51/x
  3. Step 3: Cross multiply
    1,340,509.72x = 2,010,132.81 × 486,979.51
  4. Step 4: Simplify right side
    1,340,509.72x = 978,893,490,848.72
  5. Step 5: Solve for x
    x = 978,893,490,848.72/1,340,509.72
  6. Step 6: Final answer
    x = 730,239.76

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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.