Home / 1,257,084.86-1,734,816.47-713,243.57

Finding the Fourth Proportional to 1,257,084.86, 1,734,816.47 and 713,243.57

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Solution

The fourth proportional to 1,257,084.86, 1,734,816.47 and 713,243.57 is: 984,298.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,084.86 : 1,734,816.47 = 713,243.57 : x
  2. Step 2: Convert to fraction form
    1,257,084.86/1,734,816.47 = 713,243.57/x
  3. Step 3: Cross multiply
    1,257,084.86x = 1,734,816.47 × 713,243.57
  4. Step 4: Simplify right side
    1,257,084.86x = 1,237,346,680,117.30
  5. Step 5: Solve for x
    x = 1,237,346,680,117.30/1,257,084.86
  6. Step 6: Final answer
    x = 984,298.45

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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.