Home / 1,013,211.40-1,399,421.46-809,966.20

Finding the Fourth Proportional to 1,013,211.40, 1,399,421.46 and 809,966.20

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Solution

The fourth proportional to 1,013,211.40, 1,399,421.46 and 809,966.20 is: 1,118,704.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,211.40 : 1,399,421.46 = 809,966.20 : x
  2. Step 2: Convert to fraction form
    1,013,211.40/1,399,421.46 = 809,966.20/x
  3. Step 3: Cross multiply
    1,013,211.40x = 1,399,421.46 × 809,966.20
  4. Step 4: Simplify right side
    1,013,211.40x = 1,133,484,082,154.65
  5. Step 5: Solve for x
    x = 1,133,484,082,154.65/1,013,211.40
  6. Step 6: Final answer
    x = 1,118,704.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.