Home / 1,222,962.92-1,687,795.78-679,205.01

Finding the Fourth Proportional to 1,222,962.92, 1,687,795.78 and 679,205.01

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Solution

The fourth proportional to 1,222,962.92, 1,687,795.78 and 679,205.01 is: 937,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,962.92 : 1,687,795.78 = 679,205.01 : x
  2. Step 2: Convert to fraction form
    1,222,962.92/1,687,795.78 = 679,205.01/x
  3. Step 3: Cross multiply
    1,222,962.92x = 1,687,795.78 × 679,205.01
  4. Step 4: Simplify right side
    1,222,962.92x = 1,146,359,349,632.86
  5. Step 5: Solve for x
    x = 1,146,359,349,632.86/1,222,962.92
  6. Step 6: Final answer
    x = 937,362.31

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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.