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Finding the Fourth Proportional to 478,480.34, 660,302.51 and 263,620.40

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Solution

The fourth proportional to 478,480.34, 660,302.51 and 263,620.40 is: 363,795.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,480.34 : 660,302.51 = 263,620.40 : x
  2. Step 2: Convert to fraction form
    478,480.34/660,302.51 = 263,620.40/x
  3. Step 3: Cross multiply
    478,480.34x = 660,302.51 × 263,620.40
  4. Step 4: Simplify right side
    478,480.34x = 174,069,213,964.60
  5. Step 5: Solve for x
    x = 174,069,213,964.60/478,480.34
  6. Step 6: Final answer
    x = 363,795.96

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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.