Home / 853,826.15-1,282,215.45-455,245.40

Finding the Fourth Proportional to 853,826.15, 1,282,215.45 and 455,245.40

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Solution

The fourth proportional to 853,826.15, 1,282,215.45 and 455,245.40 is: 683,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,826.15 : 1,282,215.45 = 455,245.40 : x
  2. Step 2: Convert to fraction form
    853,826.15/1,282,215.45 = 455,245.40/x
  3. Step 3: Cross multiply
    853,826.15x = 1,282,215.45 × 455,245.40
  4. Step 4: Simplify right side
    853,826.15x = 583,722,685,421.43
  5. Step 5: Solve for x
    x = 583,722,685,421.43/853,826.15
  6. Step 6: Final answer
    x = 683,655.20

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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.