Home / 631,369.84-947,103.36-210,645.04

Finding the Fourth Proportional to 631,369.84, 947,103.36 and 210,645.04

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Solution

The fourth proportional to 631,369.84, 947,103.36 and 210,645.04 is: 315,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,369.84 : 947,103.36 = 210,645.04 : x
  2. Step 2: Convert to fraction form
    631,369.84/947,103.36 = 210,645.04/x
  3. Step 3: Cross multiply
    631,369.84x = 947,103.36 × 210,645.04
  4. Step 4: Simplify right side
    631,369.84x = 199,502,625,151.33
  5. Step 5: Solve for x
    x = 199,502,625,151.33/631,369.84
  6. Step 6: Final answer
    x = 315,983.77

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Double scale
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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.