Home / 1,138,872.32-1,708,663.86-340,185.38

Finding the Fourth Proportional to 1,138,872.32, 1,708,663.86 and 340,185.38

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Solution

The fourth proportional to 1,138,872.32, 1,708,663.86 and 340,185.38 is: 510,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,872.32 : 1,708,663.86 = 340,185.38 : x
  2. Step 2: Convert to fraction form
    1,138,872.32/1,708,663.86 = 340,185.38/x
  3. Step 3: Cross multiply
    1,138,872.32x = 1,708,663.86 × 340,185.38
  4. Step 4: Simplify right side
    1,138,872.32x = 581,262,464,506.37
  5. Step 5: Solve for x
    x = 581,262,464,506.37/1,138,872.32
  6. Step 6: Final answer
    x = 510,384.22

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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.