Home / 838,457.28-1,257,880.86-239,426.64

Finding the Fourth Proportional to 838,457.28, 1,257,880.86 and 239,426.64

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Solution

The fourth proportional to 838,457.28, 1,257,880.86 and 239,426.64 is: 359,195.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,457.28 : 1,257,880.86 = 239,426.64 : x
  2. Step 2: Convert to fraction form
    838,457.28/1,257,880.86 = 239,426.64/x
  3. Step 3: Cross multiply
    838,457.28x = 1,257,880.86 × 239,426.64
  4. Step 4: Simplify right side
    838,457.28x = 301,170,187,830.11
  5. Step 5: Solve for x
    x = 301,170,187,830.11/838,457.28
  6. Step 6: Final answer
    x = 359,195.63

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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.