Home / 750,826.78-1,036,142.23-406,663.45

Finding the Fourth Proportional to 750,826.78, 1,036,142.23 and 406,663.45

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Solution

The fourth proportional to 750,826.78, 1,036,142.23 and 406,663.45 is: 561,196.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,826.78 : 1,036,142.23 = 406,663.45 : x
  2. Step 2: Convert to fraction form
    750,826.78/1,036,142.23 = 406,663.45/x
  3. Step 3: Cross multiply
    750,826.78x = 1,036,142.23 × 406,663.45
  4. Step 4: Simplify right side
    750,826.78x = 421,361,173,942.49
  5. Step 5: Solve for x
    x = 421,361,173,942.49/750,826.78
  6. Step 6: Final answer
    x = 561,196.25

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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.