Home / 1,123,968.80-1,685,953.20-1,105,306.40

Finding the Fourth Proportional to 1,123,968.80, 1,685,953.20 and 1,105,306.40

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Solution

The fourth proportional to 1,123,968.80, 1,685,953.20 and 1,105,306.40 is: 1,657,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,968.80 : 1,685,953.20 = 1,105,306.40 : x
  2. Step 2: Convert to fraction form
    1,123,968.80/1,685,953.20 = 1,105,306.40/x
  3. Step 3: Cross multiply
    1,123,968.80x = 1,685,953.20 × 1,105,306.40
  4. Step 4: Simplify right side
    1,123,968.80x = 1,863,494,862,060.48
  5. Step 5: Solve for x
    x = 1,863,494,862,060.48/1,123,968.80
  6. Step 6: Final answer
    x = 1,657,959.60

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Similar ratio
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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.