Home / 1,123,345.20-1,685,017.80-923,890.80

Finding the Fourth Proportional to 1,123,345.20, 1,685,017.80 and 923,890.80

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Solution

The fourth proportional to 1,123,345.20, 1,685,017.80 and 923,890.80 is: 1,385,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,345.20 : 1,685,017.80 = 923,890.80 : x
  2. Step 2: Convert to fraction form
    1,123,345.20/1,685,017.80 = 923,890.80/x
  3. Step 3: Cross multiply
    1,123,345.20x = 1,685,017.80 × 923,890.80
  4. Step 4: Simplify right side
    1,123,345.20x = 1,556,772,443,256.24
  5. Step 5: Solve for x
    x = 1,556,772,443,256.24/1,123,345.20
  6. Step 6: Final answer
    x = 1,385,836.20

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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.