Home / 1,126,490.66-1,689,706.83-378,536.66

Finding the Fourth Proportional to 1,126,490.66, 1,689,706.83 and 378,536.66

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Solution

The fourth proportional to 1,126,490.66, 1,689,706.83 and 378,536.66 is: 567,795.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,490.66 : 1,689,706.83 = 378,536.66 : x
  2. Step 2: Convert to fraction form
    1,126,490.66/1,689,706.83 = 378,536.66/x
  3. Step 3: Cross multiply
    1,126,490.66x = 1,689,706.83 × 378,536.66
  4. Step 4: Simplify right side
    1,126,490.66x = 639,615,979,807.39
  5. Step 5: Solve for x
    x = 639,615,979,807.39/1,126,490.66
  6. Step 6: Final answer
    x = 567,795.19

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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.