Home / 1,491,090.90-2,236,927.95-638,160.90

Finding the Fourth Proportional to 1,491,090.90, 2,236,927.95 and 638,160.90

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Solution

The fourth proportional to 1,491,090.90, 2,236,927.95 and 638,160.90 is: 957,366.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,090.90 : 2,236,927.95 = 638,160.90 : x
  2. Step 2: Convert to fraction form
    1,491,090.90/2,236,927.95 = 638,160.90/x
  3. Step 3: Cross multiply
    1,491,090.90x = 2,236,927.95 × 638,160.90
  4. Step 4: Simplify right side
    1,491,090.90x = 1,427,519,953,807.16
  5. Step 5: Solve for x
    x = 1,427,519,953,807.16/1,491,090.90
  6. Step 6: Final answer
    x = 957,366.15

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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.