Home / 771,826.40-1,157,739.60-210,860.90

Finding the Fourth Proportional to 771,826.40, 1,157,739.60 and 210,860.90

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Solution

The fourth proportional to 771,826.40, 1,157,739.60 and 210,860.90 is: 316,291.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,826.40 : 1,157,739.60 = 210,860.90 : x
  2. Step 2: Convert to fraction form
    771,826.40/1,157,739.60 = 210,860.90/x
  3. Step 3: Cross multiply
    771,826.40x = 1,157,739.60 × 210,860.90
  4. Step 4: Simplify right side
    771,826.40x = 244,122,014,021.64
  5. Step 5: Solve for x
    x = 244,122,014,021.64/771,826.40
  6. Step 6: Final answer
    x = 316,291.35

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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.