Home / 689,774.28-1,034,817.15-210,045

Finding the Fourth Proportional to 689,774.28, 1,034,817.15 and 210,045

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Solution

The fourth proportional to 689,774.28, 1,034,817.15 and 210,045 is: 315,114.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,774.28 : 1,034,817.15 = 210,045 : x
  2. Step 2: Convert to fraction form
    689,774.28/1,034,817.15 = 210,045/x
  3. Step 3: Cross multiply
    689,774.28x = 1,034,817.15 × 210,045
  4. Step 4: Simplify right side
    689,774.28x = 217,358,168,271.75
  5. Step 5: Solve for x
    x = 217,358,168,271.75/689,774.28
  6. Step 6: Final answer
    x = 315,114.92

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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.