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Finding the Fourth Proportional to 508,417.84, 701,616.33 and 278,976.63

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Solution

The fourth proportional to 508,417.84, 701,616.33 and 278,976.63 is: 384,987.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,417.84 : 701,616.33 = 278,976.63 : x
  2. Step 2: Convert to fraction form
    508,417.84/701,616.33 = 278,976.63/x
  3. Step 3: Cross multiply
    508,417.84x = 701,616.33 × 278,976.63
  4. Step 4: Simplify right side
    508,417.84x = 195,734,559,296.37
  5. Step 5: Solve for x
    x = 195,734,559,296.37/508,417.84
  6. Step 6: Final answer
    x = 384,987.59

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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.