Home / 1,279,461.58-1,919,060.64-426,441.10

Finding the Fourth Proportional to 1,279,461.58, 1,919,060.64 and 426,441.10

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Solution

The fourth proportional to 1,279,461.58, 1,919,060.64 and 426,441.10 is: 639,617.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,461.58 : 1,919,060.64 = 426,441.10 : x
  2. Step 2: Convert to fraction form
    1,279,461.58/1,919,060.64 = 426,441.10/x
  3. Step 3: Cross multiply
    1,279,461.58x = 1,919,060.64 × 426,441.10
  4. Step 4: Simplify right side
    1,279,461.58x = 818,366,330,288.30
  5. Step 5: Solve for x
    x = 818,366,330,288.30/1,279,461.58
  6. Step 6: Final answer
    x = 639,617.74

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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.