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Finding the Fourth Proportional to 508,894.48, 702,296.32 and 282,540

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Solution

The fourth proportional to 508,894.48, 702,296.32 and 282,540 is: 389,917.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,894.48 : 702,296.32 = 282,540 : x
  2. Step 2: Convert to fraction form
    508,894.48/702,296.32 = 282,540/x
  3. Step 3: Cross multiply
    508,894.48x = 702,296.32 × 282,540
  4. Step 4: Simplify right side
    508,894.48x = 198,426,802,252.80
  5. Step 5: Solve for x
    x = 198,426,802,252.80/508,894.48
  6. Step 6: Final answer
    x = 389,917.38

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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.