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Finding the Fourth Proportional to 586,628.71, 809,559.08 and 382,810.03

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Solution

The fourth proportional to 586,628.71, 809,559.08 and 382,810.03 is: 528,285.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,628.71 : 809,559.08 = 382,810.03 : x
  2. Step 2: Convert to fraction form
    586,628.71/809,559.08 = 382,810.03/x
  3. Step 3: Cross multiply
    586,628.71x = 809,559.08 × 382,810.03
  4. Step 4: Simplify right side
    586,628.71x = 309,907,335,701.57
  5. Step 5: Solve for x
    x = 309,907,335,701.57/586,628.71
  6. Step 6: Final answer
    x = 528,285.32

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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.