Home / 823,530.16-1,235,650.29-318,446.74

Finding the Fourth Proportional to 823,530.16, 1,235,650.29 and 318,446.74

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Solution

The fourth proportional to 823,530.16, 1,235,650.29 and 318,446.74 is: 477,807.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,530.16 : 1,235,650.29 = 318,446.74 : x
  2. Step 2: Convert to fraction form
    823,530.16/1,235,650.29 = 318,446.74/x
  3. Step 3: Cross multiply
    823,530.16x = 1,235,650.29 × 318,446.74
  4. Step 4: Simplify right side
    823,530.16x = 393,488,806,630.56
  5. Step 5: Solve for x
    x = 393,488,806,630.56/823,530.16
  6. Step 6: Final answer
    x = 477,807.40

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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.