Home / 1,487,686.89-2,231,554.94-646,238.64

Finding the Fourth Proportional to 1,487,686.89, 2,231,554.94 and 646,238.64

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Solution

The fourth proportional to 1,487,686.89, 2,231,554.94 and 646,238.64 is: 969,368.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,686.89 : 2,231,554.94 = 646,238.64 : x
  2. Step 2: Convert to fraction form
    1,487,686.89/2,231,554.94 = 646,238.64/x
  3. Step 3: Cross multiply
    1,487,686.89x = 2,231,554.94 × 646,238.64
  4. Step 4: Simplify right side
    1,487,686.89x = 1,442,117,029,510.88
  5. Step 5: Solve for x
    x = 1,442,117,029,510.88/1,487,686.89
  6. Step 6: Final answer
    x = 969,368.65

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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.