Home / 578,015.40-867,023.10-400,722.60

Finding the Fourth Proportional to 578,015.40, 867,023.10 and 400,722.60

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Solution

The fourth proportional to 578,015.40, 867,023.10 and 400,722.60 is: 601,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,015.40 : 867,023.10 = 400,722.60 : x
  2. Step 2: Convert to fraction form
    578,015.40/867,023.10 = 400,722.60/x
  3. Step 3: Cross multiply
    578,015.40x = 867,023.10 × 400,722.60
  4. Step 4: Simplify right side
    578,015.40x = 347,435,750,892.06
  5. Step 5: Solve for x
    x = 347,435,750,892.06/578,015.40
  6. Step 6: Final answer
    x = 601,083.90

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Similar ratio
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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.