Home / 728,767.08-1,005,699.96-406,498.06

Finding the Fourth Proportional to 728,767.08, 1,005,699.96 and 406,498.06

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Solution

The fourth proportional to 728,767.08, 1,005,699.96 and 406,498.06 is: 560,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,767.08 : 1,005,699.96 = 406,498.06 : x
  2. Step 2: Convert to fraction form
    728,767.08/1,005,699.96 = 406,498.06/x
  3. Step 3: Cross multiply
    728,767.08x = 1,005,699.96 × 406,498.06
  4. Step 4: Simplify right side
    728,767.08x = 408,815,082,682.08
  5. Step 5: Solve for x
    x = 408,815,082,682.08/728,767.08
  6. Step 6: Final answer
    x = 560,968.10

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1.5x scale

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.