Home / 1,126,156.96-1,689,484.61-620,457.55

Finding the Fourth Proportional to 1,126,156.96, 1,689,484.61 and 620,457.55

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Solution

The fourth proportional to 1,126,156.96, 1,689,484.61 and 620,457.55 is: 930,823.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,156.96 : 1,689,484.61 = 620,457.55 : x
  2. Step 2: Convert to fraction form
    1,126,156.96/1,689,484.61 = 620,457.55/x
  3. Step 3: Cross multiply
    1,126,156.96x = 1,689,484.61 × 620,457.55
  4. Step 4: Simplify right side
    1,126,156.96x = 1,048,253,481,883.31
  5. Step 5: Solve for x
    x = 1,048,253,481,883.31/1,126,156.96
  6. Step 6: Final answer
    x = 930,823.61

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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.