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Finding the Fourth Proportional to 478,419.94, 660,216.45 and 263,555.02

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Solution

The fourth proportional to 478,419.94, 660,216.45 and 263,555.02 is: 363,704.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,419.94 : 660,216.45 = 263,555.02 : x
  2. Step 2: Convert to fraction form
    478,419.94/660,216.45 = 263,555.02/x
  3. Step 3: Cross multiply
    478,419.94x = 660,216.45 × 263,555.02
  4. Step 4: Simplify right side
    478,419.94x = 174,003,359,684.08
  5. Step 5: Solve for x
    x = 174,003,359,684.08/478,419.94
  6. Step 6: Final answer
    x = 363,704.24

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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.