Home / 1,443,157.05-2,164,126.32-432,422.58

Finding the Fourth Proportional to 1,443,157.05, 2,164,126.32 and 432,422.58

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Solution

The fourth proportional to 1,443,157.05, 2,164,126.32 and 432,422.58 is: 648,451.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,157.05 : 2,164,126.32 = 432,422.58 : x
  2. Step 2: Convert to fraction form
    1,443,157.05/2,164,126.32 = 432,422.58/x
  3. Step 3: Cross multiply
    1,443,157.05x = 2,164,126.32 × 432,422.58
  4. Step 4: Simplify right side
    1,443,157.05x = 935,817,086,740.31
  5. Step 5: Solve for x
    x = 935,817,086,740.31/1,443,157.05
  6. Step 6: Final answer
    x = 648,451.31

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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.