Home / 1,345,396.09-2,018,501.55-480,717.77

Finding the Fourth Proportional to 1,345,396.09, 2,018,501.55 and 480,717.77

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Solution

The fourth proportional to 1,345,396.09, 2,018,501.55 and 480,717.77 is: 721,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,396.09 : 2,018,501.55 = 480,717.77 : x
  2. Step 2: Convert to fraction form
    1,345,396.09/2,018,501.55 = 480,717.77/x
  3. Step 3: Cross multiply
    1,345,396.09x = 2,018,501.55 × 480,717.77
  4. Step 4: Simplify right side
    1,345,396.09x = 970,329,563,857.54
  5. Step 5: Solve for x
    x = 970,329,563,857.54/1,345,396.09
  6. Step 6: Final answer
    x = 721,222.23

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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.