Home / 789,869.76-1,184,827.20-310,077.60

Finding the Fourth Proportional to 789,869.76, 1,184,827.20 and 310,077.60

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Solution

The fourth proportional to 789,869.76, 1,184,827.20 and 310,077.60 is: 465,125.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,869.76 : 1,184,827.20 = 310,077.60 : x
  2. Step 2: Convert to fraction form
    789,869.76/1,184,827.20 = 310,077.60/x
  3. Step 3: Cross multiply
    789,869.76x = 1,184,827.20 × 310,077.60
  4. Step 4: Simplify right side
    789,869.76x = 367,388,374,590.72
  5. Step 5: Solve for x
    x = 367,388,374,590.72/789,869.76
  6. Step 6: Final answer
    x = 465,125.26

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1.5x scale

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.