Home / 839,866.30-1,158,965.55-477,239.83

Finding the Fourth Proportional to 839,866.30, 1,158,965.55 and 477,239.83

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Solution

The fourth proportional to 839,866.30, 1,158,965.55 and 477,239.83 is: 658,562.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,866.30 : 1,158,965.55 = 477,239.83 : x
  2. Step 2: Convert to fraction form
    839,866.30/1,158,965.55 = 477,239.83/x
  3. Step 3: Cross multiply
    839,866.30x = 1,158,965.55 × 477,239.83
  4. Step 4: Simplify right side
    839,866.30x = 553,104,522,057.86
  5. Step 5: Solve for x
    x = 553,104,522,057.86/839,866.30
  6. Step 6: Final answer
    x = 658,562.59

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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.