Home / 1,313,739.78-1,812,961.15-740,779.96

Finding the Fourth Proportional to 1,313,739.78, 1,812,961.15 and 740,779.96

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Solution

The fourth proportional to 1,313,739.78, 1,812,961.15 and 740,779.96 is: 1,022,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,739.78 : 1,812,961.15 = 740,779.96 : x
  2. Step 2: Convert to fraction form
    1,313,739.78/1,812,961.15 = 740,779.96/x
  3. Step 3: Cross multiply
    1,313,739.78x = 1,812,961.15 × 740,779.96
  4. Step 4: Simplify right side
    1,313,739.78x = 1,343,005,281,136.31
  5. Step 5: Solve for x
    x = 1,343,005,281,136.31/1,313,739.78
  6. Step 6: Final answer
    x = 1,022,276.48

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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.