Home / 743,762.96-1,026,400.80-404,231.20

Finding the Fourth Proportional to 743,762.96, 1,026,400.80 and 404,231.20

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Solution

The fourth proportional to 743,762.96, 1,026,400.80 and 404,231.20 is: 557,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,762.96 : 1,026,400.80 = 404,231.20 : x
  2. Step 2: Convert to fraction form
    743,762.96/1,026,400.80 = 404,231.20/x
  3. Step 3: Cross multiply
    743,762.96x = 1,026,400.80 × 404,231.20
  4. Step 4: Simplify right side
    743,762.96x = 414,903,227,064.96
  5. Step 5: Solve for x
    x = 414,903,227,064.96/743,762.96
  6. Step 6: Final answer
    x = 557,843.36

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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.