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Finding the Fourth Proportional to 314,539.48, 469,528.73 and 291,124.90

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Solution

The fourth proportional to 314,539.48, 469,528.73 and 291,124.90 is: 434,576.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,539.48 : 469,528.73 = 291,124.90 : x
  2. Step 2: Convert to fraction form
    314,539.48/469,528.73 = 291,124.90/x
  3. Step 3: Cross multiply
    314,539.48x = 469,528.73 × 291,124.90
  4. Step 4: Simplify right side
    314,539.48x = 136,691,504,568.38
  5. Step 5: Solve for x
    x = 136,691,504,568.38/314,539.48
  6. Step 6: Final answer
    x = 434,576.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.