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Finding the Fourth Proportional to 631,408.49, 947,486.40 and 232,329.51

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Solution

The fourth proportional to 631,408.49, 947,486.40 and 232,329.51 is: 348,631.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,408.49 : 947,486.40 = 232,329.51 : x
  2. Step 2: Convert to fraction form
    631,408.49/947,486.40 = 232,329.51/x
  3. Step 3: Cross multiply
    631,408.49x = 947,486.40 × 232,329.51
  4. Step 4: Simplify right side
    631,408.49x = 220,129,051,043.66
  5. Step 5: Solve for x
    x = 220,129,051,043.66/631,408.49
  6. Step 6: Final answer
    x = 348,631.76

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Double scale
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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.