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Finding the Fourth Proportional to 657,525.60, 985,996.80 and 302,648.40

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Solution

The fourth proportional to 657,525.60, 985,996.80 and 302,648.40 is: 453,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,525.60 : 985,996.80 = 302,648.40 : x
  2. Step 2: Convert to fraction form
    657,525.60/985,996.80 = 302,648.40/x
  3. Step 3: Cross multiply
    657,525.60x = 985,996.80 × 302,648.40
  4. Step 4: Simplify right side
    657,525.60x = 298,410,353,925.12
  5. Step 5: Solve for x
    x = 298,410,353,925.12/657,525.60
  6. Step 6: Final answer
    x = 453,838.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.