Home / 456,756.10-684,215.61-256,776.82

Finding the Fourth Proportional to 456,756.10, 684,215.61 and 256,776.82

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Solution

The fourth proportional to 456,756.10, 684,215.61 and 256,776.82 is: 384,648.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,756.10 : 684,215.61 = 256,776.82 : x
  2. Step 2: Convert to fraction form
    456,756.10/684,215.61 = 256,776.82/x
  3. Step 3: Cross multiply
    456,756.10x = 684,215.61 × 256,776.82
  4. Step 4: Simplify right side
    456,756.10x = 175,690,708,530.16
  5. Step 5: Solve for x
    x = 175,690,708,530.16/456,756.10
  6. Step 6: Final answer
    x = 384,648.85

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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.