Home / 643,038.65-964,464.09-187,507.48

Finding the Fourth Proportional to 643,038.65, 964,464.09 and 187,507.48

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Solution

The fourth proportional to 643,038.65, 964,464.09 and 187,507.48 is: 281,233.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,038.65 : 964,464.09 = 187,507.48 : x
  2. Step 2: Convert to fraction form
    643,038.65/964,464.09 = 187,507.48/x
  3. Step 3: Cross multiply
    643,038.65x = 964,464.09 × 187,507.48
  4. Step 4: Simplify right side
    643,038.65x = 180,844,228,186.46
  5. Step 5: Solve for x
    x = 180,844,228,186.46/643,038.65
  6. Step 6: Final answer
    x = 281,233.84

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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.