Home / 853,818.40-1,282,203.83-455,237.65

Finding the Fourth Proportional to 853,818.40, 1,282,203.83 and 455,237.65

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Solution

The fourth proportional to 853,818.40, 1,282,203.83 and 455,237.65 is: 683,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,818.40 : 1,282,203.83 = 455,237.65 : x
  2. Step 2: Convert to fraction form
    853,818.40/1,282,203.83 = 455,237.65/x
  3. Step 3: Cross multiply
    853,818.40x = 1,282,203.83 × 455,237.65
  4. Step 4: Simplify right side
    853,818.40x = 583,707,456,114.01
  5. Step 5: Solve for x
    x = 583,707,456,114.01/853,818.40
  6. Step 6: Final answer
    x = 683,643.57

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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.