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Finding the Fourth Proportional to 586,580.06, 809,480.49 and 318,308.06

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Solution

The fourth proportional to 586,580.06, 809,480.49 and 318,308.06 is: 439,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,580.06 : 809,480.49 = 318,308.06 : x
  2. Step 2: Convert to fraction form
    586,580.06/809,480.49 = 318,308.06/x
  3. Step 3: Cross multiply
    586,580.06x = 809,480.49 × 318,308.06
  4. Step 4: Simplify right side
    586,580.06x = 257,664,165,209.80
  5. Step 5: Solve for x
    x = 257,664,165,209.80/586,580.06
  6. Step 6: Final answer
    x = 439,265.13

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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.