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Finding the Fourth Proportional to 504,807.48, 696,638.76 and 275,365.78

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Solution

The fourth proportional to 504,807.48, 696,638.76 and 275,365.78 is: 380,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,807.48 : 696,638.76 = 275,365.78 : x
  2. Step 2: Convert to fraction form
    504,807.48/696,638.76 = 275,365.78/x
  3. Step 3: Cross multiply
    504,807.48x = 696,638.76 × 275,365.78
  4. Step 4: Simplify right side
    504,807.48x = 191,830,476,558.26
  5. Step 5: Solve for x
    x = 191,830,476,558.26/504,807.48
  6. Step 6: Final answer
    x = 380,007.20

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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.