Home / 648,145.04-972,217.60-204,913.04

Finding the Fourth Proportional to 648,145.04, 972,217.60 and 204,913.04

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Solution

The fourth proportional to 648,145.04, 972,217.60 and 204,913.04 is: 307,369.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,145.04 : 972,217.60 = 204,913.04 : x
  2. Step 2: Convert to fraction form
    648,145.04/972,217.60 = 204,913.04/x
  3. Step 3: Cross multiply
    648,145.04x = 972,217.60 × 204,913.04
  4. Step 4: Simplify right side
    648,145.04x = 199,220,063,957.50
  5. Step 5: Solve for x
    x = 199,220,063,957.50/648,145.04
  6. Step 6: Final answer
    x = 307,369.57

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Similar ratio
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1.5x scale

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.