Home / 1,216,811-1,679,156.88-700,547.78

Finding the Fourth Proportional to 1,216,811, 1,679,156.88 and 700,547.78

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Solution

The fourth proportional to 1,216,811, 1,679,156.88 and 700,547.78 is: 966,731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,811 : 1,679,156.88 = 700,547.78 : x
  2. Step 2: Convert to fraction form
    1,216,811/1,679,156.88 = 700,547.78/x
  3. Step 3: Cross multiply
    1,216,811x = 1,679,156.88 × 700,547.78
  4. Step 4: Simplify right side
    1,216,811x = 1,176,329,624,555.73
  5. Step 5: Solve for x
    x = 1,176,329,624,555.73/1,216,811
  6. Step 6: Final answer
    x = 966,731.58

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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.