Home / 764,858.62-1,147,123.90-315,462.93

Finding the Fourth Proportional to 764,858.62, 1,147,123.90 and 315,462.93

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Solution

The fourth proportional to 764,858.62, 1,147,123.90 and 315,462.93 is: 473,126.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,858.62 : 1,147,123.90 = 315,462.93 : x
  2. Step 2: Convert to fraction form
    764,858.62/1,147,123.90 = 315,462.93/x
  3. Step 3: Cross multiply
    764,858.62x = 1,147,123.90 × 315,462.93
  4. Step 4: Simplify right side
    764,858.62x = 361,875,066,567.03
  5. Step 5: Solve for x
    x = 361,875,066,567.03/764,858.62
  6. Step 6: Final answer
    x = 473,126.74

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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.