Home / 740,017.23-1,021,223.77-400,485.48

Finding the Fourth Proportional to 740,017.23, 1,021,223.77 and 400,485.48

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Solution

The fourth proportional to 740,017.23, 1,021,223.77 and 400,485.48 is: 552,669.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,017.23 : 1,021,223.77 = 400,485.48 : x
  2. Step 2: Convert to fraction form
    740,017.23/1,021,223.77 = 400,485.48/x
  3. Step 3: Cross multiply
    740,017.23x = 1,021,223.77 × 400,485.48
  4. Step 4: Simplify right side
    740,017.23x = 408,985,292,629.44
  5. Step 5: Solve for x
    x = 408,985,292,629.44/740,017.23
  6. Step 6: Final answer
    x = 552,669.96

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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.