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Finding the Fourth Proportional to 586,882.98, 809,886.33 and 318,610.98

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Solution

The fourth proportional to 586,882.98, 809,886.33 and 318,610.98 is: 439,676.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,882.98 : 809,886.33 = 318,610.98 : x
  2. Step 2: Convert to fraction form
    586,882.98/809,886.33 = 318,610.98/x
  3. Step 3: Cross multiply
    586,882.98x = 809,886.33 × 318,610.98
  4. Step 4: Simplify right side
    586,882.98x = 258,038,677,289.90
  5. Step 5: Solve for x
    x = 258,038,677,289.90/586,882.98
  6. Step 6: Final answer
    x = 439,676.54

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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.