Home / 740,019.24-1,021,229.82-400,487.58

Finding the Fourth Proportional to 740,019.24, 1,021,229.82 and 400,487.58

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Solution

The fourth proportional to 740,019.24, 1,021,229.82 and 400,487.58 is: 552,674.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,019.24 : 1,021,229.82 = 400,487.58 : x
  2. Step 2: Convert to fraction form
    740,019.24/1,021,229.82 = 400,487.58/x
  3. Step 3: Cross multiply
    740,019.24x = 1,021,229.82 × 400,487.58
  4. Step 4: Simplify right side
    740,019.24x = 408,989,859,235.64
  5. Step 5: Solve for x
    x = 408,989,859,235.64/740,019.24
  6. Step 6: Final answer
    x = 552,674.63

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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.