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Finding the Fourth Proportional to 478,284.80, 660,033.12 and 263,424.32

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Solution

The fourth proportional to 478,284.80, 660,033.12 and 263,424.32 is: 363,525.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,284.80 : 660,033.12 = 263,424.32 : x
  2. Step 2: Convert to fraction form
    478,284.80/660,033.12 = 263,424.32/x
  3. Step 3: Cross multiply
    478,284.80x = 660,033.12 × 263,424.32
  4. Step 4: Simplify right side
    478,284.80x = 173,868,775,813.48
  5. Step 5: Solve for x
    x = 173,868,775,813.48/478,284.80
  6. Step 6: Final answer
    x = 363,525.61

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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.