Home / 526,015.60-789,023.40-315,545.20

Finding the Fourth Proportional to 526,015.60, 789,023.40 and 315,545.20

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Solution

The fourth proportional to 526,015.60, 789,023.40 and 315,545.20 is: 473,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,015.60 : 789,023.40 = 315,545.20 : x
  2. Step 2: Convert to fraction form
    526,015.60/789,023.40 = 315,545.20/x
  3. Step 3: Cross multiply
    526,015.60x = 789,023.40 × 315,545.20
  4. Step 4: Simplify right side
    526,015.60x = 248,972,546,557.68
  5. Step 5: Solve for x
    x = 248,972,546,557.68/526,015.60
  6. Step 6: Final answer
    x = 473,317.80

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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.