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Finding the Fourth Proportional to 586,672.62, 809,608.55 and 318,400.62

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Solution

The fourth proportional to 586,672.62, 809,608.55 and 318,400.62 is: 439,393.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,672.62 : 809,608.55 = 318,400.62 : x
  2. Step 2: Convert to fraction form
    586,672.62/809,608.55 = 318,400.62/x
  3. Step 3: Cross multiply
    586,672.62x = 809,608.55 × 318,400.62
  4. Step 4: Simplify right side
    586,672.62x = 257,779,864,277.30
  5. Step 5: Solve for x
    x = 257,779,864,277.30/586,672.62
  6. Step 6: Final answer
    x = 439,393.04

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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.