Home / 1,319,416.16-1,820,797.84-715,804.16

Finding the Fourth Proportional to 1,319,416.16, 1,820,797.84 and 715,804.16

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Solution

The fourth proportional to 1,319,416.16, 1,820,797.84 and 715,804.16 is: 987,811.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,416.16 : 1,820,797.84 = 715,804.16 : x
  2. Step 2: Convert to fraction form
    1,319,416.16/1,820,797.84 = 715,804.16/x
  3. Step 3: Cross multiply
    1,319,416.16x = 1,820,797.84 × 715,804.16
  4. Step 4: Simplify right side
    1,319,416.16x = 1,303,334,668,391.01
  5. Step 5: Solve for x
    x = 1,303,334,668,391.01/1,319,416.16
  6. Step 6: Final answer
    x = 987,811.66

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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.