Home / 1,275,134.40-1,908,554.40-993,124.80

Finding the Fourth Proportional to 1,275,134.40, 1,908,554.40 and 993,124.80

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Solution

The fourth proportional to 1,275,134.40, 1,908,554.40 and 993,124.80 is: 1,486,457.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,134.40 : 1,908,554.40 = 993,124.80 : x
  2. Step 2: Convert to fraction form
    1,275,134.40/1,908,554.40 = 993,124.80/x
  3. Step 3: Cross multiply
    1,275,134.40x = 1,908,554.40 × 993,124.80
  4. Step 4: Simplify right side
    1,275,134.40x = 1,895,432,706,789.12
  5. Step 5: Solve for x
    x = 1,895,432,706,789.12/1,275,134.40
  6. Step 6: Final answer
    x = 1,486,457.20

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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.