Home / 689,878.50-1,034,984.36-216,563.86

Finding the Fourth Proportional to 689,878.50, 1,034,984.36 and 216,563.86

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Solution

The fourth proportional to 689,878.50, 1,034,984.36 and 216,563.86 is: 324,898.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,878.50 : 1,034,984.36 = 216,563.86 : x
  2. Step 2: Convert to fraction form
    689,878.50/1,034,984.36 = 216,563.86/x
  3. Step 3: Cross multiply
    689,878.50x = 1,034,984.36 × 216,563.86
  4. Step 4: Simplify right side
    689,878.50x = 224,140,208,041.23
  5. Step 5: Solve for x
    x = 224,140,208,041.23/689,878.50
  6. Step 6: Final answer
    x = 324,898.09

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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.