Home / 809,532.40-1,214,298.60-389,628.40

Finding the Fourth Proportional to 809,532.40, 1,214,298.60 and 389,628.40

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Solution

The fourth proportional to 809,532.40, 1,214,298.60 and 389,628.40 is: 584,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,532.40 : 1,214,298.60 = 389,628.40 : x
  2. Step 2: Convert to fraction form
    809,532.40/1,214,298.60 = 389,628.40/x
  3. Step 3: Cross multiply
    809,532.40x = 1,214,298.60 × 389,628.40
  4. Step 4: Simplify right side
    809,532.40x = 473,125,220,640.24
  5. Step 5: Solve for x
    x = 473,125,220,640.24/809,532.40
  6. Step 6: Final answer
    x = 584,442.60

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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.