Home / 1,903,989.72-2,855,962.62-642,703.08

Finding the Fourth Proportional to 1,903,989.72, 2,855,962.62 and 642,703.08

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Solution

The fourth proportional to 1,903,989.72, 2,855,962.62 and 642,703.08 is: 964,047.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903,989.72 : 2,855,962.62 = 642,703.08 : x
  2. Step 2: Convert to fraction form
    1,903,989.72/2,855,962.62 = 642,703.08/x
  3. Step 3: Cross multiply
    1,903,989.72x = 2,855,962.62 × 642,703.08
  4. Step 4: Simplify right side
    1,903,989.72x = 1,835,535,972,238.87
  5. Step 5: Solve for x
    x = 1,835,535,972,238.87/1,903,989.72
  6. Step 6: Final answer
    x = 964,047.21

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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.