Home / 1,405,205.62-1,939,188.60-760,625.64

Finding the Fourth Proportional to 1,405,205.62, 1,939,188.60 and 760,625.64

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Solution

The fourth proportional to 1,405,205.62, 1,939,188.60 and 760,625.64 is: 1,049,666.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,205.62 : 1,939,188.60 = 760,625.64 : x
  2. Step 2: Convert to fraction form
    1,405,205.62/1,939,188.60 = 760,625.64/x
  3. Step 3: Cross multiply
    1,405,205.62x = 1,939,188.60 × 760,625.64
  4. Step 4: Simplify right side
    1,405,205.62x = 1,474,996,569,955.70
  5. Step 5: Solve for x
    x = 1,474,996,569,955.70/1,405,205.62
  6. Step 6: Final answer
    x = 1,049,666.01

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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.