Home / 1,319,409.66-1,820,788.86-715,797.66

Finding the Fourth Proportional to 1,319,409.66, 1,820,788.86 and 715,797.66

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Solution

The fourth proportional to 1,319,409.66, 1,820,788.86 and 715,797.66 is: 987,802.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,409.66 : 1,820,788.86 = 715,797.66 : x
  2. Step 2: Convert to fraction form
    1,319,409.66/1,820,788.86 = 715,797.66/x
  3. Step 3: Cross multiply
    1,319,409.66x = 1,820,788.86 × 715,797.66
  4. Step 4: Simplify right side
    1,319,409.66x = 1,303,316,405,342.07
  5. Step 5: Solve for x
    x = 1,303,316,405,342.07/1,319,409.66
  6. Step 6: Final answer
    x = 987,802.69

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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.