Home / 1,557,763.56-2,149,779.06-878,699.88

Finding the Fourth Proportional to 1,557,763.56, 2,149,779.06 and 878,699.88

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Solution

The fourth proportional to 1,557,763.56, 2,149,779.06 and 878,699.88 is: 1,212,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,763.56 : 2,149,779.06 = 878,699.88 : x
  2. Step 2: Convert to fraction form
    1,557,763.56/2,149,779.06 = 878,699.88/x
  3. Step 3: Cross multiply
    1,557,763.56x = 2,149,779.06 × 878,699.88
  4. Step 4: Simplify right side
    1,557,763.56x = 1,889,010,602,048.51
  5. Step 5: Solve for x
    x = 1,889,010,602,048.51/1,557,763.56
  6. Step 6: Final answer
    x = 1,212,642.70

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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.