Home / 559,831.20-840,621.60-323,635.20

Finding the Fourth Proportional to 559,831.20, 840,621.60 and 323,635.20

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Solution

The fourth proportional to 559,831.20, 840,621.60 and 323,635.20 is: 485,958.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,831.20 : 840,621.60 = 323,635.20 : x
  2. Step 2: Convert to fraction form
    559,831.20/840,621.60 = 323,635.20/x
  3. Step 3: Cross multiply
    559,831.20x = 840,621.60 × 323,635.20
  4. Step 4: Simplify right side
    559,831.20x = 272,054,739,640.32
  5. Step 5: Solve for x
    x = 272,054,739,640.32/559,831.20
  6. Step 6: Final answer
    x = 485,958.52

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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.