Home / 1,429,959.88-1,973,368.38-785,439.64

Finding the Fourth Proportional to 1,429,959.88, 1,973,368.38 and 785,439.64

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Solution

The fourth proportional to 1,429,959.88, 1,973,368.38 and 785,439.64 is: 1,083,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,959.88 : 1,973,368.38 = 785,439.64 : x
  2. Step 2: Convert to fraction form
    1,429,959.88/1,973,368.38 = 785,439.64/x
  3. Step 3: Cross multiply
    1,429,959.88x = 1,973,368.38 × 785,439.64
  4. Step 4: Simplify right side
    1,429,959.88x = 1,549,961,749,974.58
  5. Step 5: Solve for x
    x = 1,549,961,749,974.58/1,429,959.88
  6. Step 6: Final answer
    x = 1,083,919.75

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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.