Home / 1,320,435-1,822,222.38-716,823

Finding the Fourth Proportional to 1,320,435, 1,822,222.38 and 716,823

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Solution

The fourth proportional to 1,320,435, 1,822,222.38 and 716,823 is: 989,227.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,435 : 1,822,222.38 = 716,823 : x
  2. Step 2: Convert to fraction form
    1,320,435/1,822,222.38 = 716,823/x
  3. Step 3: Cross multiply
    1,320,435x = 1,822,222.38 × 716,823
  4. Step 4: Simplify right side
    1,320,435x = 1,306,210,913,098.74
  5. Step 5: Solve for x
    x = 1,306,210,913,098.74/1,320,435
  6. Step 6: Final answer
    x = 989,227.73

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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.