Home / 879,779.60-1,214,109.96-477,371.60

Finding the Fourth Proportional to 879,779.60, 1,214,109.96 and 477,371.60

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Solution

The fourth proportional to 879,779.60, 1,214,109.96 and 477,371.60 is: 658,780.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,779.60 : 1,214,109.96 = 477,371.60 : x
  2. Step 2: Convert to fraction form
    879,779.60/1,214,109.96 = 477,371.60/x
  3. Step 3: Cross multiply
    879,779.60x = 1,214,109.96 × 477,371.60
  4. Step 4: Simplify right side
    879,779.60x = 579,581,614,181.14
  5. Step 5: Solve for x
    x = 579,581,614,181.14/879,779.60
  6. Step 6: Final answer
    x = 658,780.47

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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.