Home / 1,266,780.26-1,900,182.70-1,013,431.35

Finding the Fourth Proportional to 1,266,780.26, 1,900,182.70 and 1,013,431.35

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Solution

The fourth proportional to 1,266,780.26, 1,900,182.70 and 1,013,431.35 is: 1,520,156.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,780.26 : 1,900,182.70 = 1,013,431.35 : x
  2. Step 2: Convert to fraction form
    1,266,780.26/1,900,182.70 = 1,013,431.35/x
  3. Step 3: Cross multiply
    1,266,780.26x = 1,900,182.70 × 1,013,431.35
  4. Step 4: Simplify right side
    1,266,780.26x = 1,925,704,710,911.04
  5. Step 5: Solve for x
    x = 1,925,704,710,911.04/1,266,780.26
  6. Step 6: Final answer
    x = 1,520,156.86

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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.