Home / 1,340,532.09-1,851,814.04-1,219,459.77

Finding the Fourth Proportional to 1,340,532.09, 1,851,814.04 and 1,219,459.77

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Solution

The fourth proportional to 1,340,532.09, 1,851,814.04 and 1,219,459.77 is: 1,684,564.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,532.09 : 1,851,814.04 = 1,219,459.77 : x
  2. Step 2: Convert to fraction form
    1,340,532.09/1,851,814.04 = 1,219,459.77/x
  3. Step 3: Cross multiply
    1,340,532.09x = 1,851,814.04 × 1,219,459.77
  4. Step 4: Simplify right side
    1,340,532.09x = 2,258,212,717,203.87
  5. Step 5: Solve for x
    x = 2,258,212,717,203.87/1,340,532.09
  6. Step 6: Final answer
    x = 1,684,564.46

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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.