Home / 428,424.08-591,090.14-247,111.70

Finding the Fourth Proportional to 428,424.08, 591,090.14 and 247,111.70

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Solution

The fourth proportional to 428,424.08, 591,090.14 and 247,111.70 is: 340,936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,424.08 : 591,090.14 = 247,111.70 : x
  2. Step 2: Convert to fraction form
    428,424.08/591,090.14 = 247,111.70/x
  3. Step 3: Cross multiply
    428,424.08x = 591,090.14 × 247,111.70
  4. Step 4: Simplify right side
    428,424.08x = 146,065,289,348.64
  5. Step 5: Solve for x
    x = 146,065,289,348.64/428,424.08
  6. Step 6: Final answer
    x = 340,936.23

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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.