Home / 853,838.65-1,282,234.20-455,257.90

Finding the Fourth Proportional to 853,838.65, 1,282,234.20 and 455,257.90

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Solution

The fourth proportional to 853,838.65, 1,282,234.20 and 455,257.90 is: 683,673.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,838.65 : 1,282,234.20 = 455,257.90 : x
  2. Step 2: Convert to fraction form
    853,838.65/1,282,234.20 = 455,257.90/x
  3. Step 3: Cross multiply
    853,838.65x = 1,282,234.20 × 455,257.90
  4. Step 4: Simplify right side
    853,838.65x = 583,747,249,200.18
  5. Step 5: Solve for x
    x = 583,747,249,200.18/853,838.65
  6. Step 6: Final answer
    x = 683,673.96

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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.