Home / 992,507.82-1,488,620.90-318,501.96

Finding the Fourth Proportional to 992,507.82, 1,488,620.90 and 318,501.96

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Solution

The fourth proportional to 992,507.82, 1,488,620.90 and 318,501.96 is: 477,707.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,507.82 : 1,488,620.90 = 318,501.96 : x
  2. Step 2: Convert to fraction form
    992,507.82/1,488,620.90 = 318,501.96/x
  3. Step 3: Cross multiply
    992,507.82x = 1,488,620.90 × 318,501.96
  4. Step 4: Simplify right side
    992,507.82x = 474,128,674,346.96
  5. Step 5: Solve for x
    x = 474,128,674,346.96/992,507.82
  6. Step 6: Final answer
    x = 477,707.75

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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.