Home / 1,386,514.32-2,079,813.84-475,684

Finding the Fourth Proportional to 1,386,514.32, 2,079,813.84 and 475,684

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Solution

The fourth proportional to 1,386,514.32, 2,079,813.84 and 475,684 is: 713,540.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,514.32 : 2,079,813.84 = 475,684 : x
  2. Step 2: Convert to fraction form
    1,386,514.32/2,079,813.84 = 475,684/x
  3. Step 3: Cross multiply
    1,386,514.32x = 2,079,813.84 × 475,684
  4. Step 4: Simplify right side
    1,386,514.32x = 989,334,166,666.56
  5. Step 5: Solve for x
    x = 989,334,166,666.56/1,386,514.32
  6. Step 6: Final answer
    x = 713,540.53

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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.