Home / 856,422.85-1,284,231.89-496,695.87

Finding the Fourth Proportional to 856,422.85, 1,284,231.89 and 496,695.87

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Solution

The fourth proportional to 856,422.85, 1,284,231.89 and 496,695.87 is: 744,810.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,422.85 : 1,284,231.89 = 496,695.87 : x
  2. Step 2: Convert to fraction form
    856,422.85/1,284,231.89 = 496,695.87/x
  3. Step 3: Cross multiply
    856,422.85x = 1,284,231.89 × 496,695.87
  4. Step 4: Simplify right side
    856,422.85x = 637,872,679,341.98
  5. Step 5: Solve for x
    x = 637,872,679,341.98/856,422.85
  6. Step 6: Final answer
    x = 744,810.44

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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.