Home / 939,358.76-1,409,042.39-399,475.94

Finding the Fourth Proportional to 939,358.76, 1,409,042.39 and 399,475.94

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Solution

The fourth proportional to 939,358.76, 1,409,042.39 and 399,475.94 is: 599,215.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,358.76 : 1,409,042.39 = 399,475.94 : x
  2. Step 2: Convert to fraction form
    939,358.76/1,409,042.39 = 399,475.94/x
  3. Step 3: Cross multiply
    939,358.76x = 1,409,042.39 × 399,475.94
  4. Step 4: Simplify right side
    939,358.76x = 562,878,531,733.47
  5. Step 5: Solve for x
    x = 562,878,531,733.47/939,358.76
  6. Step 6: Final answer
    x = 599,215.72

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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.