Home / 939,812.40-1,409,718.60-229,831.20

Finding the Fourth Proportional to 939,812.40, 1,409,718.60 and 229,831.20

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Solution

The fourth proportional to 939,812.40, 1,409,718.60 and 229,831.20 is: 344,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,812.40 : 1,409,718.60 = 229,831.20 : x
  2. Step 2: Convert to fraction form
    939,812.40/1,409,718.60 = 229,831.20/x
  3. Step 3: Cross multiply
    939,812.40x = 1,409,718.60 × 229,831.20
  4. Step 4: Simplify right side
    939,812.40x = 323,997,317,500.32
  5. Step 5: Solve for x
    x = 323,997,317,500.32/939,812.40
  6. Step 6: Final answer
    x = 344,746.80

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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.