Home / 689,440.48-1,034,178-190,808.80

Finding the Fourth Proportional to 689,440.48, 1,034,178 and 190,808.80

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Solution

The fourth proportional to 689,440.48, 1,034,178 and 190,808.80 is: 286,217.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,440.48 : 1,034,178 = 190,808.80 : x
  2. Step 2: Convert to fraction form
    689,440.48/1,034,178 = 190,808.80/x
  3. Step 3: Cross multiply
    689,440.48x = 1,034,178 × 190,808.80
  4. Step 4: Simplify right side
    689,440.48x = 197,330,263,166.40
  5. Step 5: Solve for x
    x = 197,330,263,166.40/689,440.48
  6. Step 6: Final answer
    x = 286,217.98

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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.