Home / 1,319,410.91-1,820,790.59-715,798.91

Finding the Fourth Proportional to 1,319,410.91, 1,820,790.59 and 715,798.91

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Solution

The fourth proportional to 1,319,410.91, 1,820,790.59 and 715,798.91 is: 987,804.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,410.91 : 1,820,790.59 = 715,798.91 : x
  2. Step 2: Convert to fraction form
    1,319,410.91/1,820,790.59 = 715,798.91/x
  3. Step 3: Cross multiply
    1,319,410.91x = 1,820,790.59 × 715,798.91
  4. Step 4: Simplify right side
    1,319,410.91x = 1,303,319,916,081.26
  5. Step 5: Solve for x
    x = 1,303,319,916,081.26/1,319,410.91
  6. Step 6: Final answer
    x = 987,804.41

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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.