Home / 909,105.80-1,363,529.10-310,094.60

Finding the Fourth Proportional to 909,105.80, 1,363,529.10 and 310,094.60

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Solution

The fourth proportional to 909,105.80, 1,363,529.10 and 310,094.60 is: 465,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,105.80 : 1,363,529.10 = 310,094.60 : x
  2. Step 2: Convert to fraction form
    909,105.80/1,363,529.10 = 310,094.60/x
  3. Step 3: Cross multiply
    909,105.80x = 1,363,529.10 × 310,094.60
  4. Step 4: Simplify right side
    909,105.80x = 422,823,010,852.86
  5. Step 5: Solve for x
    x = 422,823,010,852.86/909,105.80
  6. Step 6: Final answer
    x = 465,097.69

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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.