Home / 883,621.48-1,219,339.64-521,027.80

Finding the Fourth Proportional to 883,621.48, 1,219,339.64 and 521,027.80

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Solution

The fourth proportional to 883,621.48, 1,219,339.64 and 521,027.80 is: 718,984.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,621.48 : 1,219,339.64 = 521,027.80 : x
  2. Step 2: Convert to fraction form
    883,621.48/1,219,339.64 = 521,027.80/x
  3. Step 3: Cross multiply
    883,621.48x = 1,219,339.64 × 521,027.80
  4. Step 4: Simplify right side
    883,621.48x = 635,309,850,081.99
  5. Step 5: Solve for x
    x = 635,309,850,081.99/883,621.48
  6. Step 6: Final answer
    x = 718,984.16

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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.