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Finding the Fourth Proportional to 556,040.72, 767,338.98 and 301,389.68

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Solution

The fourth proportional to 556,040.72, 767,338.98 and 301,389.68 is: 415,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,040.72 : 767,338.98 = 301,389.68 : x
  2. Step 2: Convert to fraction form
    556,040.72/767,338.98 = 301,389.68/x
  3. Step 3: Cross multiply
    556,040.72x = 767,338.98 × 301,389.68
  4. Step 4: Simplify right side
    556,040.72x = 231,268,049,633.73
  5. Step 5: Solve for x
    x = 231,268,049,633.73/556,040.72
  6. Step 6: Final answer
    x = 415,919.27

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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.