Home / 1,090,655.40-1,636,005.78-291,936

Finding the Fourth Proportional to 1,090,655.40, 1,636,005.78 and 291,936

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Solution

The fourth proportional to 1,090,655.40, 1,636,005.78 and 291,936 is: 437,910.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,655.40 : 1,636,005.78 = 291,936 : x
  2. Step 2: Convert to fraction form
    1,090,655.40/1,636,005.78 = 291,936/x
  3. Step 3: Cross multiply
    1,090,655.40x = 1,636,005.78 × 291,936
  4. Step 4: Simplify right side
    1,090,655.40x = 477,608,983,390.08
  5. Step 5: Solve for x
    x = 477,608,983,390.08/1,090,655.40
  6. Step 6: Final answer
    x = 437,910.07

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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.