Home / 502,945.86-693,895.34-285,131.18

Finding the Fourth Proportional to 502,945.86, 693,895.34 and 285,131.18

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Solution

The fourth proportional to 502,945.86, 693,895.34 and 285,131.18 is: 393,384.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,945.86 : 693,895.34 = 285,131.18 : x
  2. Step 2: Convert to fraction form
    502,945.86/693,895.34 = 285,131.18/x
  3. Step 3: Cross multiply
    502,945.86x = 693,895.34 × 285,131.18
  4. Step 4: Simplify right side
    502,945.86x = 197,851,197,090.70
  5. Step 5: Solve for x
    x = 197,851,197,090.70/502,945.86
  6. Step 6: Final answer
    x = 393,384.68

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1.5x scale

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.