Home / 957,213.81-1,320,938.04-521,635.05

Finding the Fourth Proportional to 957,213.81, 1,320,938.04 and 521,635.05

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Solution

The fourth proportional to 957,213.81, 1,320,938.04 and 521,635.05 is: 719,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,213.81 : 1,320,938.04 = 521,635.05 : x
  2. Step 2: Convert to fraction form
    957,213.81/1,320,938.04 = 521,635.05/x
  3. Step 3: Cross multiply
    957,213.81x = 1,320,938.04 × 521,635.05
  4. Step 4: Simplify right side
    957,213.81x = 689,047,580,542.30
  5. Step 5: Solve for x
    x = 689,047,580,542.30/957,213.81
  6. Step 6: Final answer
    x = 719,847.10

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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.