Home / 1,379,392.90-2,069,090.51-659,565.25

Finding the Fourth Proportional to 1,379,392.90, 2,069,090.51 and 659,565.25

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Solution

The fourth proportional to 1,379,392.90, 2,069,090.51 and 659,565.25 is: 989,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,392.90 : 2,069,090.51 = 659,565.25 : x
  2. Step 2: Convert to fraction form
    1,379,392.90/2,069,090.51 = 659,565.25/x
  3. Step 3: Cross multiply
    1,379,392.90x = 2,069,090.51 × 659,565.25
  4. Step 4: Simplify right side
    1,379,392.90x = 1,364,700,191,030.23
  5. Step 5: Solve for x
    x = 1,364,700,191,030.23/1,379,392.90
  6. Step 6: Final answer
    x = 989,348.43

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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.