Home / 448,118.20-618,203.10-302,877.64

Finding the Fourth Proportional to 448,118.20, 618,203.10 and 302,877.64

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Solution

The fourth proportional to 448,118.20, 618,203.10 and 302,877.64 is: 417,835.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,118.20 : 618,203.10 = 302,877.64 : x
  2. Step 2: Convert to fraction form
    448,118.20/618,203.10 = 302,877.64/x
  3. Step 3: Cross multiply
    448,118.20x = 618,203.10 × 302,877.64
  4. Step 4: Simplify right side
    448,118.20x = 187,239,895,968.68
  5. Step 5: Solve for x
    x = 187,239,895,968.68/448,118.20
  6. Step 6: Final answer
    x = 417,835.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.