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Finding the Fourth Proportional to 648,085.86, 894,215.30 and 375,996.06

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Solution

The fourth proportional to 648,085.86, 894,215.30 and 375,996.06 is: 518,791.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,085.86 : 894,215.30 = 375,996.06 : x
  2. Step 2: Convert to fraction form
    648,085.86/894,215.30 = 375,996.06/x
  3. Step 3: Cross multiply
    648,085.86x = 894,215.30 × 375,996.06
  4. Step 4: Simplify right side
    648,085.86x = 336,221,427,711.74
  5. Step 5: Solve for x
    x = 336,221,427,711.74/648,085.86
  6. Step 6: Final answer
    x = 518,791.49

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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.