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Finding the Fourth Proportional to 452,459.63, 677,655.89 and 215,968.79

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Solution

The fourth proportional to 452,459.63, 677,655.89 and 215,968.79 is: 323,459.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,459.63 : 677,655.89 = 215,968.79 : x
  2. Step 2: Convert to fraction form
    452,459.63/677,655.89 = 215,968.79/x
  3. Step 3: Cross multiply
    452,459.63x = 677,655.89 × 215,968.79
  4. Step 4: Simplify right side
    452,459.63x = 146,352,521,519.83
  5. Step 5: Solve for x
    x = 146,352,521,519.83/452,459.63
  6. Step 6: Final answer
    x = 323,459.84

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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.