Home / 1,319,405.16-1,820,782.65-715,793.16

Finding the Fourth Proportional to 1,319,405.16, 1,820,782.65 and 715,793.16

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Solution

The fourth proportional to 1,319,405.16, 1,820,782.65 and 715,793.16 is: 987,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,405.16 : 1,820,782.65 = 715,793.16 : x
  2. Step 2: Convert to fraction form
    1,319,405.16/1,820,782.65 = 715,793.16/x
  3. Step 3: Cross multiply
    1,319,405.16x = 1,820,782.65 × 715,793.16
  4. Step 4: Simplify right side
    1,319,405.16x = 1,303,303,766,716.67
  5. Step 5: Solve for x
    x = 1,303,303,766,716.67/1,319,405.16
  6. Step 6: Final answer
    x = 987,796.48

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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.