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Finding the Fourth Proportional to 674,490.06, 930,785.04 and 368,559.72

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Solution

The fourth proportional to 674,490.06, 930,785.04 and 368,559.72 is: 508,606.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,490.06 : 930,785.04 = 368,559.72 : x
  2. Step 2: Convert to fraction form
    674,490.06/930,785.04 = 368,559.72/x
  3. Step 3: Cross multiply
    674,490.06x = 930,785.04 × 368,559.72
  4. Step 4: Simplify right side
    674,490.06x = 343,049,873,722.59
  5. Step 5: Solve for x
    x = 343,049,873,722.59/674,490.06
  6. Step 6: Final answer
    x = 508,606.27

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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.