Home / 1,155,698.69-1,594,911.20-639,444.19

Finding the Fourth Proportional to 1,155,698.69, 1,594,911.20 and 639,444.19

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Solution

The fourth proportional to 1,155,698.69, 1,594,911.20 and 639,444.19 is: 882,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,698.69 : 1,594,911.20 = 639,444.19 : x
  2. Step 2: Convert to fraction form
    1,155,698.69/1,594,911.20 = 639,444.19/x
  3. Step 3: Cross multiply
    1,155,698.69x = 1,594,911.20 × 639,444.19
  4. Step 4: Simplify right side
    1,155,698.69x = 1,019,856,689,234.15
  5. Step 5: Solve for x
    x = 1,019,856,689,234.15/1,155,698.69
  6. Step 6: Final answer
    x = 882,458.98

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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.