Home / 856,747.80-1,282,356.90-790,392.60

Finding the Fourth Proportional to 856,747.80, 1,282,356.90 and 790,392.60

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Solution

The fourth proportional to 856,747.80, 1,282,356.90 and 790,392.60 is: 1,183,038.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,747.80 : 1,282,356.90 = 790,392.60 : x
  2. Step 2: Convert to fraction form
    856,747.80/1,282,356.90 = 790,392.60/x
  3. Step 3: Cross multiply
    856,747.80x = 1,282,356.90 × 790,392.60
  4. Step 4: Simplify right side
    856,747.80x = 1,013,565,404,318.94
  5. Step 5: Solve for x
    x = 1,013,565,404,318.94/856,747.80
  6. Step 6: Final answer
    x = 1,183,038.23

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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.