Home / 579,009.08-872,457.89-476,132.60

Finding the Fourth Proportional to 579,009.08, 872,457.89 and 476,132.60

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Solution

The fourth proportional to 579,009.08, 872,457.89 and 476,132.60 is: 717,442.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,009.08 : 872,457.89 = 476,132.60 : x
  2. Step 2: Convert to fraction form
    579,009.08/872,457.89 = 476,132.60/x
  3. Step 3: Cross multiply
    579,009.08x = 872,457.89 × 476,132.60
  4. Step 4: Simplify right side
    579,009.08x = 415,405,643,556.21
  5. Step 5: Solve for x
    x = 415,405,643,556.21/579,009.08
  6. Step 6: Final answer
    x = 717,442.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.