Home / 692,943.86-1,039,514.31-213,211.44

Finding the Fourth Proportional to 692,943.86, 1,039,514.31 and 213,211.44

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Solution

The fourth proportional to 692,943.86, 1,039,514.31 and 213,211.44 is: 319,847.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,943.86 : 1,039,514.31 = 213,211.44 : x
  2. Step 2: Convert to fraction form
    692,943.86/1,039,514.31 = 213,211.44/x
  3. Step 3: Cross multiply
    692,943.86x = 1,039,514.31 × 213,211.44
  4. Step 4: Simplify right side
    692,943.86x = 221,636,342,935.71
  5. Step 5: Solve for x
    x = 221,636,342,935.71/692,943.86
  6. Step 6: Final answer
    x = 319,847.47

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1.5x scale

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.