Home / 926,980.92-1,390,121.46-427,995

Finding the Fourth Proportional to 926,980.92, 1,390,121.46 and 427,995

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Solution

The fourth proportional to 926,980.92, 1,390,121.46 and 427,995 is: 641,830.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,980.92 : 1,390,121.46 = 427,995 : x
  2. Step 2: Convert to fraction form
    926,980.92/1,390,121.46 = 427,995/x
  3. Step 3: Cross multiply
    926,980.92x = 1,390,121.46 × 427,995
  4. Step 4: Simplify right side
    926,980.92x = 594,965,034,272.70
  5. Step 5: Solve for x
    x = 594,965,034,272.70/926,980.92
  6. Step 6: Final answer
    x = 641,830.94

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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.