Home / 1,673,121.42-2,308,905.81-909,173.16

Finding the Fourth Proportional to 1,673,121.42, 2,308,905.81 and 909,173.16

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Solution

The fourth proportional to 1,673,121.42, 2,308,905.81 and 909,173.16 is: 1,254,658.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673,121.42 : 2,308,905.81 = 909,173.16 : x
  2. Step 2: Convert to fraction form
    1,673,121.42/2,308,905.81 = 909,173.16/x
  3. Step 3: Cross multiply
    1,673,121.42x = 2,308,905.81 × 909,173.16
  4. Step 4: Simplify right side
    1,673,121.42x = 2,099,195,191,420.06
  5. Step 5: Solve for x
    x = 2,099,195,191,420.06/1,673,121.42
  6. Step 6: Final answer
    x = 1,254,658.01

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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.