Home / 992,504.31-1,488,615.65-318,498.45

Finding the Fourth Proportional to 992,504.31, 1,488,615.65 and 318,498.45

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Solution

The fourth proportional to 992,504.31, 1,488,615.65 and 318,498.45 is: 477,702.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,504.31 : 1,488,615.65 = 318,498.45 : x
  2. Step 2: Convert to fraction form
    992,504.31/1,488,615.65 = 318,498.45/x
  3. Step 3: Cross multiply
    992,504.31x = 1,488,615.65 × 318,498.45
  4. Step 4: Simplify right side
    992,504.31x = 474,121,775,578.25
  5. Step 5: Solve for x
    x = 474,121,775,578.25/992,504.31
  6. Step 6: Final answer
    x = 477,702.49

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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.