Home / 992,632.25-1,488,222.47-318,329.72

Finding the Fourth Proportional to 992,632.25, 1,488,222.47 and 318,329.72

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Solution

The fourth proportional to 992,632.25, 1,488,222.47 and 318,329.72 is: 477,261.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,632.25 : 1,488,222.47 = 318,329.72 : x
  2. Step 2: Convert to fraction form
    992,632.25/1,488,222.47 = 318,329.72/x
  3. Step 3: Cross multiply
    992,632.25x = 1,488,222.47 × 318,329.72
  4. Step 4: Simplify right side
    992,632.25x = 473,745,442,172.81
  5. Step 5: Solve for x
    x = 473,745,442,172.81/992,632.25
  6. Step 6: Final answer
    x = 477,261.79

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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.