Home / 1,420,636.32-1,960,453.53-776,039.94

Finding the Fourth Proportional to 1,420,636.32, 1,960,453.53 and 776,039.94

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Solution

The fourth proportional to 1,420,636.32, 1,960,453.53 and 776,039.94 is: 1,070,921.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,636.32 : 1,960,453.53 = 776,039.94 : x
  2. Step 2: Convert to fraction form
    1,420,636.32/1,960,453.53 = 776,039.94/x
  3. Step 3: Cross multiply
    1,420,636.32x = 1,960,453.53 × 776,039.94
  4. Step 4: Simplify right side
    1,420,636.32x = 1,521,390,239,793.99
  5. Step 5: Solve for x
    x = 1,521,390,239,793.99/1,420,636.32
  6. Step 6: Final answer
    x = 1,070,921.68

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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.