Home / 879,414.30-1,319,121.45-524,828.70

Finding the Fourth Proportional to 879,414.30, 1,319,121.45 and 524,828.70

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Solution

The fourth proportional to 879,414.30, 1,319,121.45 and 524,828.70 is: 787,243.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,414.30 : 1,319,121.45 = 524,828.70 : x
  2. Step 2: Convert to fraction form
    879,414.30/1,319,121.45 = 524,828.70/x
  3. Step 3: Cross multiply
    879,414.30x = 1,319,121.45 × 524,828.70
  4. Step 4: Simplify right side
    879,414.30x = 692,312,795,745.62
  5. Step 5: Solve for x
    x = 692,312,795,745.62/879,414.30
  6. Step 6: Final answer
    x = 787,243.05

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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.