Home / 1,289,111.04-1,779,019.68-745,417.44

Finding the Fourth Proportional to 1,289,111.04, 1,779,019.68 and 745,417.44

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Solution

The fourth proportional to 1,289,111.04, 1,779,019.68 and 745,417.44 is: 1,028,702.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,111.04 : 1,779,019.68 = 745,417.44 : x
  2. Step 2: Convert to fraction form
    1,289,111.04/1,779,019.68 = 745,417.44/x
  3. Step 3: Cross multiply
    1,289,111.04x = 1,779,019.68 × 745,417.44
  4. Step 4: Simplify right side
    1,289,111.04x = 1,326,112,295,575.22
  5. Step 5: Solve for x
    x = 1,326,112,295,575.22/1,289,111.04
  6. Step 6: Final answer
    x = 1,028,702.92

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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.