Home / 648,043.06-972,064.59-204,776.50

Finding the Fourth Proportional to 648,043.06, 972,064.59 and 204,776.50

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Solution

The fourth proportional to 648,043.06, 972,064.59 and 204,776.50 is: 307,164.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,043.06 : 972,064.59 = 204,776.50 : x
  2. Step 2: Convert to fraction form
    648,043.06/972,064.59 = 204,776.50/x
  3. Step 3: Cross multiply
    648,043.06x = 972,064.59 × 204,776.50
  4. Step 4: Simplify right side
    648,043.06x = 199,055,984,514.14
  5. Step 5: Solve for x
    x = 199,055,984,514.14/648,043.06
  6. Step 6: Final answer
    x = 307,164.75

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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.