Home / 1,491,960.40-2,238,232.20-639,030.40

Finding the Fourth Proportional to 1,491,960.40, 2,238,232.20 and 639,030.40

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Solution

The fourth proportional to 1,491,960.40, 2,238,232.20 and 639,030.40 is: 958,670.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,960.40 : 2,238,232.20 = 639,030.40 : x
  2. Step 2: Convert to fraction form
    1,491,960.40/2,238,232.20 = 639,030.40/x
  3. Step 3: Cross multiply
    1,491,960.40x = 2,238,232.20 × 639,030.40
  4. Step 4: Simplify right side
    1,491,960.40x = 1,430,298,418,058.88
  5. Step 5: Solve for x
    x = 1,430,298,418,058.88/1,491,960.40
  6. Step 6: Final answer
    x = 958,670.50

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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.