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Finding the Fourth Proportional to 657,326.60, 985,698.30 and 302,449.40

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Solution

The fourth proportional to 657,326.60, 985,698.30 and 302,449.40 is: 453,539.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,326.60 : 985,698.30 = 302,449.40 : x
  2. Step 2: Convert to fraction form
    657,326.60/985,698.30 = 302,449.40/x
  3. Step 3: Cross multiply
    657,326.60x = 985,698.30 × 302,449.40
  4. Step 4: Simplify right side
    657,326.60x = 298,123,859,416.02
  5. Step 5: Solve for x
    x = 298,123,859,416.02/657,326.60
  6. Step 6: Final answer
    x = 453,539.93

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1.5x scale

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.