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Finding the Fourth Proportional to 504,686.40, 758,082.60 and 425,954.40

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Solution

The fourth proportional to 504,686.40, 758,082.60 and 425,954.40 is: 639,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,686.40 : 758,082.60 = 425,954.40 : x
  2. Step 2: Convert to fraction form
    504,686.40/758,082.60 = 425,954.40/x
  3. Step 3: Cross multiply
    504,686.40x = 758,082.60 × 425,954.40
  4. Step 4: Simplify right side
    504,686.40x = 322,908,619,033.44
  5. Step 5: Solve for x
    x = 322,908,619,033.44/504,686.40
  6. Step 6: Final answer
    x = 639,820.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.