Home / 1,490,908.80-2,236,382.64-425,985.60

Finding the Fourth Proportional to 1,490,908.80, 2,236,382.64 and 425,985.60

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Solution

The fourth proportional to 1,490,908.80, 2,236,382.64 and 425,985.60 is: 638,983.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,908.80 : 2,236,382.64 = 425,985.60 : x
  2. Step 2: Convert to fraction form
    1,490,908.80/2,236,382.64 = 425,985.60/x
  3. Step 3: Cross multiply
    1,490,908.80x = 2,236,382.64 × 425,985.60
  4. Step 4: Simplify right side
    1,490,908.80x = 952,666,800,729.98
  5. Step 5: Solve for x
    x = 952,666,800,729.98/1,490,908.80
  6. Step 6: Final answer
    x = 638,983.95

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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.