Home / 808,220.75-1,212,337.20-358,820.60

Finding the Fourth Proportional to 808,220.75, 1,212,337.20 and 358,820.60

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Solution

The fourth proportional to 808,220.75, 1,212,337.20 and 358,820.60 is: 538,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,220.75 : 1,212,337.20 = 358,820.60 : x
  2. Step 2: Convert to fraction form
    808,220.75/1,212,337.20 = 358,820.60/x
  3. Step 3: Cross multiply
    808,220.75x = 1,212,337.20 × 358,820.60
  4. Step 4: Simplify right side
    808,220.75x = 435,011,561,506.32
  5. Step 5: Solve for x
    x = 435,011,561,506.32/808,220.75
  6. Step 6: Final answer
    x = 538,233.60

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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.