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Finding the Fourth Proportional to 674,488.56, 930,782.97 and 368,558.22

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Solution

The fourth proportional to 674,488.56, 930,782.97 and 368,558.22 is: 508,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,488.56 : 930,782.97 = 368,558.22 : x
  2. Step 2: Convert to fraction form
    674,488.56/930,782.97 = 368,558.22/x
  3. Step 3: Cross multiply
    674,488.56x = 930,782.97 × 368,558.22
  4. Step 4: Simplify right side
    674,488.56x = 343,047,714,629.51
  5. Step 5: Solve for x
    x = 343,047,714,629.51/674,488.56
  6. Step 6: Final answer
    x = 508,604.20

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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.