Home / 1,319,296.32-1,820,632.42-715,684.32

Finding the Fourth Proportional to 1,319,296.32, 1,820,632.42 and 715,684.32

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Solution

The fourth proportional to 1,319,296.32, 1,820,632.42 and 715,684.32 is: 987,646.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,296.32 : 1,820,632.42 = 715,684.32 : x
  2. Step 2: Convert to fraction form
    1,319,296.32/1,820,632.42 = 715,684.32/x
  3. Step 3: Cross multiply
    1,319,296.32x = 1,820,632.42 × 715,684.32
  4. Step 4: Simplify right side
    1,319,296.32x = 1,302,998,073,688.44
  5. Step 5: Solve for x
    x = 1,302,998,073,688.44/1,319,296.32
  6. Step 6: Final answer
    x = 987,646.26

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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.