Home / 992,636.12-1,488,228.26-318,333.62

Finding the Fourth Proportional to 992,636.12, 1,488,228.26 and 318,333.62

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Solution

The fourth proportional to 992,636.12, 1,488,228.26 and 318,333.62 is: 477,267.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,636.12 : 1,488,228.26 = 318,333.62 : x
  2. Step 2: Convert to fraction form
    992,636.12/1,488,228.26 = 318,333.62/x
  3. Step 3: Cross multiply
    992,636.12x = 1,488,228.26 × 318,333.62
  4. Step 4: Simplify right side
    992,636.12x = 473,753,089,392.10
  5. Step 5: Solve for x
    x = 473,753,089,392.10/992,636.12
  6. Step 6: Final answer
    x = 477,267.63

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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.