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Finding the Fourth Proportional to 391,895.64, 587,427.24 and 249,292.29

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Solution

The fourth proportional to 391,895.64, 587,427.24 and 249,292.29 is: 373,673.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,895.64 : 587,427.24 = 249,292.29 : x
  2. Step 2: Convert to fraction form
    391,895.64/587,427.24 = 249,292.29/x
  3. Step 3: Cross multiply
    391,895.64x = 587,427.24 × 249,292.29
  4. Step 4: Simplify right side
    391,895.64x = 146,441,081,867.98
  5. Step 5: Solve for x
    x = 146,441,081,867.98/391,895.64
  6. Step 6: Final answer
    x = 373,673.67

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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.