Home / 957,378.89-1,321,165.42-521,800.01

Finding the Fourth Proportional to 957,378.89, 1,321,165.42 and 521,800.01

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Solution

The fourth proportional to 957,378.89, 1,321,165.42 and 521,800.01 is: 720,074.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,378.89 : 1,321,165.42 = 521,800.01 : x
  2. Step 2: Convert to fraction form
    957,378.89/1,321,165.42 = 521,800.01/x
  3. Step 3: Cross multiply
    957,378.89x = 1,321,165.42 × 521,800.01
  4. Step 4: Simplify right side
    957,378.89x = 689,384,126,411.70
  5. Step 5: Solve for x
    x = 689,384,126,411.70/957,378.89
  6. Step 6: Final answer
    x = 720,074.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.