Home / 426,849.80-638,892.30-302,433.80

Finding the Fourth Proportional to 426,849.80, 638,892.30 and 302,433.80

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Solution

The fourth proportional to 426,849.80, 638,892.30 and 302,433.80 is: 452,671.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,849.80 : 638,892.30 = 302,433.80 : x
  2. Step 2: Convert to fraction form
    426,849.80/638,892.30 = 302,433.80/x
  3. Step 3: Cross multiply
    426,849.80x = 638,892.30 × 302,433.80
  4. Step 4: Simplify right side
    426,849.80x = 193,222,626,079.74
  5. Step 5: Solve for x
    x = 193,222,626,079.74/426,849.80
  6. Step 6: Final answer
    x = 452,671.23

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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.