Home / 648,137.04-972,205.60-204,905.04

Finding the Fourth Proportional to 648,137.04, 972,205.60 and 204,905.04

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Solution

The fourth proportional to 648,137.04, 972,205.60 and 204,905.04 is: 307,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,137.04 : 972,205.60 = 204,905.04 : x
  2. Step 2: Convert to fraction form
    648,137.04/972,205.60 = 204,905.04/x
  3. Step 3: Cross multiply
    648,137.04x = 972,205.60 × 204,905.04
  4. Step 4: Simplify right side
    648,137.04x = 199,209,827,356.22
  5. Step 5: Solve for x
    x = 199,209,827,356.22/648,137.04
  6. Step 6: Final answer
    x = 307,357.57

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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.