Home / 646,153.44-969,428.52-330,831.72

Finding the Fourth Proportional to 646,153.44, 969,428.52 and 330,831.72

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Solution

The fourth proportional to 646,153.44, 969,428.52 and 330,831.72 is: 496,349.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,153.44 : 969,428.52 = 330,831.72 : x
  2. Step 2: Convert to fraction form
    646,153.44/969,428.52 = 330,831.72/x
  3. Step 3: Cross multiply
    646,153.44x = 969,428.52 × 330,831.72
  4. Step 4: Simplify right side
    646,153.44x = 320,717,704,688.65
  5. Step 5: Solve for x
    x = 320,717,704,688.65/646,153.44
  6. Step 6: Final answer
    x = 496,349.14

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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.