Home / 1,319,297.57-1,820,634.14-715,685.57

Finding the Fourth Proportional to 1,319,297.57, 1,820,634.14 and 715,685.57

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Solution

The fourth proportional to 1,319,297.57, 1,820,634.14 and 715,685.57 is: 987,647.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,297.57 : 1,820,634.14 = 715,685.57 : x
  2. Step 2: Convert to fraction form
    1,319,297.57/1,820,634.14 = 715,685.57/x
  3. Step 3: Cross multiply
    1,319,297.57x = 1,820,634.14 × 715,685.57
  4. Step 4: Simplify right side
    1,319,297.57x = 1,303,001,582,247.36
  5. Step 5: Solve for x
    x = 1,303,001,582,247.36/1,319,297.57
  6. Step 6: Final answer
    x = 987,647.98

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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.