Home / 1,259,563.80-1,889,345.70-692,693.40

Finding the Fourth Proportional to 1,259,563.80, 1,889,345.70 and 692,693.40

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Solution

The fourth proportional to 1,259,563.80, 1,889,345.70 and 692,693.40 is: 1,039,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,563.80 : 1,889,345.70 = 692,693.40 : x
  2. Step 2: Convert to fraction form
    1,259,563.80/1,889,345.70 = 692,693.40/x
  3. Step 3: Cross multiply
    1,259,563.80x = 1,889,345.70 × 692,693.40
  4. Step 4: Simplify right side
    1,259,563.80x = 1,308,737,296,708.38
  5. Step 5: Solve for x
    x = 1,308,737,296,708.38/1,259,563.80
  6. Step 6: Final answer
    x = 1,039,040.10

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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.