Home / 859,277.78-1,289,508.36-298,312.28

Finding the Fourth Proportional to 859,277.78, 1,289,508.36 and 298,312.28

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Solution

The fourth proportional to 859,277.78, 1,289,508.36 and 298,312.28 is: 447,673.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,277.78 : 1,289,508.36 = 298,312.28 : x
  2. Step 2: Convert to fraction form
    859,277.78/1,289,508.36 = 298,312.28/x
  3. Step 3: Cross multiply
    859,277.78x = 1,289,508.36 × 298,312.28
  4. Step 4: Simplify right side
    859,277.78x = 384,676,178,950.66
  5. Step 5: Solve for x
    x = 384,676,178,950.66/859,277.78
  6. Step 6: Final answer
    x = 447,673.83

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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.