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Finding the Fourth Proportional to 502,005, 692,771.76 and 275,655.36

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Solution

The fourth proportional to 502,005, 692,771.76 and 275,655.36 is: 380,407.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,005 : 692,771.76 = 275,655.36 : x
  2. Step 2: Convert to fraction form
    502,005/692,771.76 = 275,655.36/x
  3. Step 3: Cross multiply
    502,005x = 692,771.76 × 275,655.36
  4. Step 4: Simplify right side
    502,005x = 190,966,248,900.63
  5. Step 5: Solve for x
    x = 190,966,248,900.63/502,005
  6. Step 6: Final answer
    x = 380,407.07

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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.