Home / 858,768.30-1,288,152.45-793,814.40

Finding the Fourth Proportional to 858,768.30, 1,288,152.45 and 793,814.40

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Solution

The fourth proportional to 858,768.30, 1,288,152.45 and 793,814.40 is: 1,190,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,768.30 : 1,288,152.45 = 793,814.40 : x
  2. Step 2: Convert to fraction form
    858,768.30/1,288,152.45 = 793,814.40/x
  3. Step 3: Cross multiply
    858,768.30x = 1,288,152.45 × 793,814.40
  4. Step 4: Simplify right side
    858,768.30x = 1,022,553,964,205.28
  5. Step 5: Solve for x
    x = 1,022,553,964,205.28/858,768.30
  6. Step 6: Final answer
    x = 1,190,721.60

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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.