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Finding the Fourth Proportional to 478,637.47, 660,519.72 and 263,777.54

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Solution

The fourth proportional to 478,637.47, 660,519.72 and 263,777.54 is: 364,013.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,637.47 : 660,519.72 = 263,777.54 : x
  2. Step 2: Convert to fraction form
    478,637.47/660,519.72 = 263,777.54/x
  3. Step 3: Cross multiply
    478,637.47x = 660,519.72 × 263,777.54
  4. Step 4: Simplify right side
    478,637.47x = 174,230,263,560.49
  5. Step 5: Solve for x
    x = 174,230,263,560.49/478,637.47
  6. Step 6: Final answer
    x = 364,013.00

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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.