Home / 428,549.54-591,245.87-247,307.31

Finding the Fourth Proportional to 428,549.54, 591,245.87 and 247,307.31

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Solution

The fourth proportional to 428,549.54, 591,245.87 and 247,307.31 is: 341,196.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,549.54 : 591,245.87 = 247,307.31 : x
  2. Step 2: Convert to fraction form
    428,549.54/591,245.87 = 247,307.31/x
  3. Step 3: Cross multiply
    428,549.54x = 591,245.87 × 247,307.31
  4. Step 4: Simplify right side
    428,549.54x = 146,219,424,421.77
  5. Step 5: Solve for x
    x = 146,219,424,421.77/428,549.54
  6. Step 6: Final answer
    x = 341,196.09

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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.