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Finding the Fourth Proportional to 501,855.48, 692,578.38 and 275,518.20

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Solution

The fourth proportional to 501,855.48, 692,578.38 and 275,518.20 is: 380,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,855.48 : 692,578.38 = 275,518.20 : x
  2. Step 2: Convert to fraction form
    501,855.48/692,578.38 = 275,518.20/x
  3. Step 3: Cross multiply
    501,855.48x = 692,578.38 × 275,518.20
  4. Step 4: Simplify right side
    501,855.48x = 190,817,948,616.52
  5. Step 5: Solve for x
    x = 190,817,948,616.52/501,855.48
  6. Step 6: Final answer
    x = 380,224.90

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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.