Home / 1,319,818.86-1,821,350.07-716,206.86

Finding the Fourth Proportional to 1,319,818.86, 1,821,350.07 and 716,206.86

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Solution

The fourth proportional to 1,319,818.86, 1,821,350.07 and 716,206.86 is: 988,365.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,818.86 : 1,821,350.07 = 716,206.86 : x
  2. Step 2: Convert to fraction form
    1,319,818.86/1,821,350.07 = 716,206.86/x
  3. Step 3: Cross multiply
    1,319,818.86x = 1,821,350.07 × 716,206.86
  4. Step 4: Simplify right side
    1,319,818.86x = 1,304,463,414,595.48
  5. Step 5: Solve for x
    x = 1,304,463,414,595.48/1,319,818.86
  6. Step 6: Final answer
    x = 988,365.49

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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.