Home / 916,783.76-1,265,183.40-514,405.52

Finding the Fourth Proportional to 916,783.76, 1,265,183.40 and 514,405.52

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Solution

The fourth proportional to 916,783.76, 1,265,183.40 and 514,405.52 is: 709,891.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,783.76 : 1,265,183.40 = 514,405.52 : x
  2. Step 2: Convert to fraction form
    916,783.76/1,265,183.40 = 514,405.52/x
  3. Step 3: Cross multiply
    916,783.76x = 1,265,183.40 × 514,405.52
  4. Step 4: Simplify right side
    916,783.76x = 650,817,324,772.37
  5. Step 5: Solve for x
    x = 650,817,324,772.37/916,783.76
  6. Step 6: Final answer
    x = 709,891.86

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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.