Home / 1,216,790.42-1,678,663.38-700,420.76

Finding the Fourth Proportional to 1,216,790.42, 1,678,663.38 and 700,420.76

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Solution

The fourth proportional to 1,216,790.42, 1,678,663.38 and 700,420.76 is: 966,288.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,790.42 : 1,678,663.38 = 700,420.76 : x
  2. Step 2: Convert to fraction form
    1,216,790.42/1,678,663.38 = 700,420.76/x
  3. Step 3: Cross multiply
    1,216,790.42x = 1,678,663.38 × 700,420.76
  4. Step 4: Simplify right side
    1,216,790.42x = 1,175,770,680,403.77
  5. Step 5: Solve for x
    x = 1,175,770,680,403.77/1,216,790.42
  6. Step 6: Final answer
    x = 966,288.57

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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.