Home / 1,127,962.72-1,692,043.80-318,354.36

Finding the Fourth Proportional to 1,127,962.72, 1,692,043.80 and 318,354.36

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Solution

The fourth proportional to 1,127,962.72, 1,692,043.80 and 318,354.36 is: 477,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,962.72 : 1,692,043.80 = 318,354.36 : x
  2. Step 2: Convert to fraction form
    1,127,962.72/1,692,043.80 = 318,354.36/x
  3. Step 3: Cross multiply
    1,127,962.72x = 1,692,043.80 × 318,354.36
  4. Step 4: Simplify right side
    1,127,962.72x = 538,669,521,040.97
  5. Step 5: Solve for x
    x = 538,669,521,040.97/1,127,962.72
  6. Step 6: Final answer
    x = 477,559.68

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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.