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Finding the Fourth Proportional to 657,486.60, 985,938.30 and 302,609.40

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Solution

The fourth proportional to 657,486.60, 985,938.30 and 302,609.40 is: 453,779.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,486.60 : 985,938.30 = 302,609.40 : x
  2. Step 2: Convert to fraction form
    657,486.60/985,938.30 = 302,609.40/x
  3. Step 3: Cross multiply
    657,486.60x = 985,938.30 × 302,609.40
  4. Step 4: Simplify right side
    657,486.60x = 298,354,197,400.02
  5. Step 5: Solve for x
    x = 298,354,197,400.02/657,486.60
  6. Step 6: Final answer
    x = 453,779.89

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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.