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Finding the Fourth Proportional to 478,605.32, 660,444.10 and 263,745.34

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Solution

The fourth proportional to 478,605.32, 660,444.10 and 263,745.34 is: 363,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,605.32 : 660,444.10 = 263,745.34 : x
  2. Step 2: Convert to fraction form
    478,605.32/660,444.10 = 263,745.34/x
  3. Step 3: Cross multiply
    478,605.32x = 660,444.10 × 263,745.34
  4. Step 4: Simplify right side
    478,605.32x = 174,189,053,705.49
  5. Step 5: Solve for x
    x = 174,189,053,705.49/478,605.32
  6. Step 6: Final answer
    x = 363,951.35

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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.