Home / 856,994.72-1,285,089.12-316,877.84

Finding the Fourth Proportional to 856,994.72, 1,285,089.12 and 316,877.84

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Solution

The fourth proportional to 856,994.72, 1,285,089.12 and 316,877.84 is: 475,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,994.72 : 1,285,089.12 = 316,877.84 : x
  2. Step 2: Convert to fraction form
    856,994.72/1,285,089.12 = 316,877.84/x
  3. Step 3: Cross multiply
    856,994.72x = 1,285,089.12 × 316,877.84
  4. Step 4: Simplify right side
    856,994.72x = 407,216,264,553.10
  5. Step 5: Solve for x
    x = 407,216,264,553.10/856,994.72
  6. Step 6: Final answer
    x = 475,167.76

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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.