Home / 728,857.02-1,005,824.30-406,588

Finding the Fourth Proportional to 728,857.02, 1,005,824.30 and 406,588

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Solution

The fourth proportional to 728,857.02, 1,005,824.30 and 406,588 is: 561,092.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,857.02 : 1,005,824.30 = 406,588 : x
  2. Step 2: Convert to fraction form
    728,857.02/1,005,824.30 = 406,588/x
  3. Step 3: Cross multiply
    728,857.02x = 1,005,824.30 × 406,588
  4. Step 4: Simplify right side
    728,857.02x = 408,956,090,488.40
  5. Step 5: Solve for x
    x = 408,956,090,488.40/728,857.02
  6. Step 6: Final answer
    x = 561,092.34

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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.