Home / 805,302.78-1,208,085.29-265,398.14

Finding the Fourth Proportional to 805,302.78, 1,208,085.29 and 265,398.14

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Solution

The fourth proportional to 805,302.78, 1,208,085.29 and 265,398.14 is: 398,140.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,302.78 : 1,208,085.29 = 265,398.14 : x
  2. Step 2: Convert to fraction form
    805,302.78/1,208,085.29 = 265,398.14/x
  3. Step 3: Cross multiply
    805,302.78x = 1,208,085.29 × 265,398.14
  4. Step 4: Simplify right side
    805,302.78x = 320,623,588,927.36
  5. Step 5: Solve for x
    x = 320,623,588,927.36/805,302.78
  6. Step 6: Final answer
    x = 398,140.42

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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.