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Finding the Fourth Proportional to 631,409.49, 947,487.90 and 232,330.51

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Solution

The fourth proportional to 631,409.49, 947,487.90 and 232,330.51 is: 348,633.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,409.49 : 947,487.90 = 232,330.51 : x
  2. Step 2: Convert to fraction form
    631,409.49/947,487.90 = 232,330.51/x
  3. Step 3: Cross multiply
    631,409.49x = 947,487.90 × 232,330.51
  4. Step 4: Simplify right side
    631,409.49x = 220,130,347,025.83
  5. Step 5: Solve for x
    x = 220,130,347,025.83/631,409.49
  6. Step 6: Final answer
    x = 348,633.26

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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.