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Finding the Fourth Proportional to 715,277.64, 986,672.64 and 446,539.08

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Solution

The fourth proportional to 715,277.64, 986,672.64 and 446,539.08 is: 615,967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,277.64 : 986,672.64 = 446,539.08 : x
  2. Step 2: Convert to fraction form
    715,277.64/986,672.64 = 446,539.08/x
  3. Step 3: Cross multiply
    715,277.64x = 986,672.64 × 446,539.08
  4. Step 4: Simplify right side
    715,277.64x = 440,587,892,926.77
  5. Step 5: Solve for x
    x = 440,587,892,926.77/715,277.64
  6. Step 6: Final answer
    x = 615,967.66

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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.