Home / 1,246,654.61-1,873,358.53-678,455.81

Finding the Fourth Proportional to 1,246,654.61, 1,873,358.53 and 678,455.81

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Solution

The fourth proportional to 1,246,654.61, 1,873,358.53 and 678,455.81 is: 1,019,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,654.61 : 1,873,358.53 = 678,455.81 : x
  2. Step 2: Convert to fraction form
    1,246,654.61/1,873,358.53 = 678,455.81/x
  3. Step 3: Cross multiply
    1,246,654.61x = 1,873,358.53 × 678,455.81
  4. Step 4: Simplify right side
    1,246,654.61x = 1,270,990,967,828.63
  5. Step 5: Solve for x
    x = 1,270,990,967,828.63/1,246,654.61
  6. Step 6: Final answer
    x = 1,019,521.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.