Home / 909,089.70-1,254,562.77-501,208.73

Finding the Fourth Proportional to 909,089.70, 1,254,562.77 and 501,208.73

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Solution

The fourth proportional to 909,089.70, 1,254,562.77 and 501,208.73 is: 691,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,089.70 : 1,254,562.77 = 501,208.73 : x
  2. Step 2: Convert to fraction form
    909,089.70/1,254,562.77 = 501,208.73/x
  3. Step 3: Cross multiply
    909,089.70x = 1,254,562.77 × 501,208.73
  4. Step 4: Simplify right side
    909,089.70x = 628,797,811,558.66
  5. Step 5: Solve for x
    x = 628,797,811,558.66/909,089.70
  6. Step 6: Final answer
    x = 691,678.52

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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.