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Finding the Fourth Proportional to 478,263.37, 660,033.29 and 263,403.38

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Solution

The fourth proportional to 478,263.37, 660,033.29 and 263,403.38 is: 363,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,263.37 : 660,033.29 = 263,403.38 : x
  2. Step 2: Convert to fraction form
    478,263.37/660,033.29 = 263,403.38/x
  3. Step 3: Cross multiply
    478,263.37x = 660,033.29 × 263,403.38
  4. Step 4: Simplify right side
    478,263.37x = 173,854,999,498.52
  5. Step 5: Solve for x
    x = 173,854,999,498.52/478,263.37
  6. Step 6: Final answer
    x = 363,513.10

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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.