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Finding the Fourth Proportional to 478,458.72, 660,274.66 and 263,598.27

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Solution

The fourth proportional to 478,458.72, 660,274.66 and 263,598.27 is: 363,766.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,458.72 : 660,274.66 = 263,598.27 : x
  2. Step 2: Convert to fraction form
    478,458.72/660,274.66 = 263,598.27/x
  3. Step 3: Cross multiply
    478,458.72x = 660,274.66 × 263,598.27
  4. Step 4: Simplify right side
    478,458.72x = 174,047,262,266.74
  5. Step 5: Solve for x
    x = 174,047,262,266.74/478,458.72
  6. Step 6: Final answer
    x = 363,766.52

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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.