Home / 1,371,380.76-1,892,820.24-912,514.32

Finding the Fourth Proportional to 1,371,380.76, 1,892,820.24 and 912,514.32

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Solution

The fourth proportional to 1,371,380.76, 1,892,820.24 and 912,514.32 is: 1,259,479.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,380.76 : 1,892,820.24 = 912,514.32 : x
  2. Step 2: Convert to fraction form
    1,371,380.76/1,892,820.24 = 912,514.32/x
  3. Step 3: Cross multiply
    1,371,380.76x = 1,892,820.24 × 912,514.32
  4. Step 4: Simplify right side
    1,371,380.76x = 1,727,225,574,185.84
  5. Step 5: Solve for x
    x = 1,727,225,574,185.84/1,371,380.76
  6. Step 6: Final answer
    x = 1,259,479.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.