Home / 876,285.80-1,308,089.77-769,997.60

Finding the Fourth Proportional to 876,285.80, 1,308,089.77 and 769,997.60

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Solution

The fourth proportional to 876,285.80, 1,308,089.77 and 769,997.60 is: 1,149,426.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,285.80 : 1,308,089.77 = 769,997.60 : x
  2. Step 2: Convert to fraction form
    876,285.80/1,308,089.77 = 769,997.60/x
  3. Step 3: Cross multiply
    876,285.80x = 1,308,089.77 × 769,997.60
  4. Step 4: Simplify right side
    876,285.80x = 1,007,225,983,484.55
  5. Step 5: Solve for x
    x = 1,007,225,983,484.55/876,285.80
  6. Step 6: Final answer
    x = 1,149,426.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.