Home / 1,379,409.68-2,069,090.35-620,714.16

Finding the Fourth Proportional to 1,379,409.68, 2,069,090.35 and 620,714.16

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Solution

The fourth proportional to 1,379,409.68, 2,069,090.35 and 620,714.16 is: 931,060.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,409.68 : 2,069,090.35 = 620,714.16 : x
  2. Step 2: Convert to fraction form
    1,379,409.68/2,069,090.35 = 620,714.16/x
  3. Step 3: Cross multiply
    1,379,409.68x = 2,069,090.35 × 620,714.16
  4. Step 4: Simplify right side
    1,379,409.68x = 1,284,313,677,012.57
  5. Step 5: Solve for x
    x = 1,284,313,677,012.57/1,379,409.68
  6. Step 6: Final answer
    x = 931,060.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.