Home / 757,803.78-1,045,743.12-451,722.33

Finding the Fourth Proportional to 757,803.78, 1,045,743.12 and 451,722.33

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Solution

The fourth proportional to 757,803.78, 1,045,743.12 and 451,722.33 is: 623,361.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,803.78 : 1,045,743.12 = 451,722.33 : x
  2. Step 2: Convert to fraction form
    757,803.78/1,045,743.12 = 451,722.33/x
  3. Step 3: Cross multiply
    757,803.78x = 1,045,743.12 × 451,722.33
  4. Step 4: Simplify right side
    757,803.78x = 472,385,518,747.87
  5. Step 5: Solve for x
    x = 472,385,518,747.87/757,803.78
  6. Step 6: Final answer
    x = 623,361.26

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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.