Home / 1,461,979.98-2,016,921.18-1,139,129.58

Finding the Fourth Proportional to 1,461,979.98, 2,016,921.18 and 1,139,129.58

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Solution

The fourth proportional to 1,461,979.98, 2,016,921.18 and 1,139,129.58 is: 1,571,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461,979.98 : 2,016,921.18 = 1,139,129.58 : x
  2. Step 2: Convert to fraction form
    1,461,979.98/2,016,921.18 = 1,139,129.58/x
  3. Step 3: Cross multiply
    1,461,979.98x = 2,016,921.18 × 1,139,129.58
  4. Step 4: Simplify right side
    1,461,979.98x = 2,297,534,576,666.50
  5. Step 5: Solve for x
    x = 2,297,534,576,666.50/1,461,979.98
  6. Step 6: Final answer
    x = 1,571,522.60

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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.