Home / 1,030,862.80-1,422,638.56-643,907.32

Finding the Fourth Proportional to 1,030,862.80, 1,422,638.56 and 643,907.32

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Solution

The fourth proportional to 1,030,862.80, 1,422,638.56 and 643,907.32 is: 888,622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,862.80 : 1,422,638.56 = 643,907.32 : x
  2. Step 2: Convert to fraction form
    1,030,862.80/1,422,638.56 = 643,907.32/x
  3. Step 3: Cross multiply
    1,030,862.80x = 1,422,638.56 × 643,907.32
  4. Step 4: Simplify right side
    1,030,862.80x = 916,047,382,498.26
  5. Step 5: Solve for x
    x = 916,047,382,498.26/1,030,862.80
  6. Step 6: Final answer
    x = 888,622.02

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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.