Home / 1,689,357.07-2,534,015.23-678,460.87

Finding the Fourth Proportional to 1,689,357.07, 2,534,015.23 and 678,460.87

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Solution

The fourth proportional to 1,689,357.07, 2,534,015.23 and 678,460.87 is: 1,017,683.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,357.07 : 2,534,015.23 = 678,460.87 : x
  2. Step 2: Convert to fraction form
    1,689,357.07/2,534,015.23 = 678,460.87/x
  3. Step 3: Cross multiply
    1,689,357.07x = 2,534,015.23 × 678,460.87
  4. Step 4: Simplify right side
    1,689,357.07x = 1,719,230,177,539.05
  5. Step 5: Solve for x
    x = 1,719,230,177,539.05/1,689,357.07
  6. Step 6: Final answer
    x = 1,017,683.12

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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.