Home / 1,903,957.72-2,855,914.68-642,671.08

Finding the Fourth Proportional to 1,903,957.72, 2,855,914.68 and 642,671.08

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Solution

The fourth proportional to 1,903,957.72, 2,855,914.68 and 642,671.08 is: 963,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903,957.72 : 2,855,914.68 = 642,671.08 : x
  2. Step 2: Convert to fraction form
    1,903,957.72/2,855,914.68 = 642,671.08/x
  3. Step 3: Cross multiply
    1,903,957.72x = 2,855,914.68 × 642,671.08
  4. Step 4: Simplify right side
    1,903,957.72x = 1,835,413,771,783.45
  5. Step 5: Solve for x
    x = 1,835,413,771,783.45/1,903,957.72
  6. Step 6: Final answer
    x = 963,999.23

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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.