Home / 1,515,055.62-2,091,533.69-942,280.42

Finding the Fourth Proportional to 1,515,055.62, 2,091,533.69 and 942,280.42

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Solution

The fourth proportional to 1,515,055.62, 2,091,533.69 and 942,280.42 is: 1,300,817.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,055.62 : 2,091,533.69 = 942,280.42 : x
  2. Step 2: Convert to fraction form
    1,515,055.62/2,091,533.69 = 942,280.42/x
  3. Step 3: Cross multiply
    1,515,055.62x = 2,091,533.69 × 942,280.42
  4. Step 4: Simplify right side
    1,515,055.62x = 1,970,811,243,857.35
  5. Step 5: Solve for x
    x = 1,970,811,243,857.35/1,515,055.62
  6. Step 6: Final answer
    x = 1,300,817.75

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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.