Home / 992,630.25-1,488,219.47-318,327.72

Finding the Fourth Proportional to 992,630.25, 1,488,219.47 and 318,327.72

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Solution

The fourth proportional to 992,630.25, 1,488,219.47 and 318,327.72 is: 477,258.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,630.25 : 1,488,219.47 = 318,327.72 : x
  2. Step 2: Convert to fraction form
    992,630.25/1,488,219.47 = 318,327.72/x
  3. Step 3: Cross multiply
    992,630.25x = 1,488,219.47 × 318,327.72
  4. Step 4: Simplify right side
    992,630.25x = 473,741,510,744.71
  5. Step 5: Solve for x
    x = 473,741,510,744.71/992,630.25
  6. Step 6: Final answer
    x = 477,258.79

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1.5x scale

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.