Home / 428,967.61-591,975.28-237,982.36

Finding the Fourth Proportional to 428,967.61, 591,975.28 and 237,982.36

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Solution

The fourth proportional to 428,967.61, 591,975.28 and 237,982.36 is: 328,415.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,967.61 : 591,975.28 = 237,982.36 : x
  2. Step 2: Convert to fraction form
    428,967.61/591,975.28 = 237,982.36/x
  3. Step 3: Cross multiply
    428,967.61x = 591,975.28 × 237,982.36
  4. Step 4: Simplify right side
    428,967.61x = 140,879,674,196.06
  5. Step 5: Solve for x
    x = 140,879,674,196.06/428,967.61
  6. Step 6: Final answer
    x = 328,415.64

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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.