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Finding the Fourth Proportional to 428,969.01, 592,029.72 and 247,680.63

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Solution

The fourth proportional to 428,969.01, 592,029.72 and 247,680.63 is: 341,829.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,969.01 : 592,029.72 = 247,680.63 : x
  2. Step 2: Convert to fraction form
    428,969.01/592,029.72 = 247,680.63/x
  3. Step 3: Cross multiply
    428,969.01x = 592,029.72 × 247,680.63
  4. Step 4: Simplify right side
    428,969.01x = 146,634,294,028.32
  5. Step 5: Solve for x
    x = 146,634,294,028.32/428,969.01
  6. Step 6: Final answer
    x = 341,829.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.