Home / 639,840.06-959,021.98-240,225.96

Finding the Fourth Proportional to 639,840.06, 959,021.98 and 240,225.96

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Solution

The fourth proportional to 639,840.06, 959,021.98 and 240,225.96 is: 360,061.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,840.06 : 959,021.98 = 240,225.96 : x
  2. Step 2: Convert to fraction form
    639,840.06/959,021.98 = 240,225.96/x
  3. Step 3: Cross multiply
    639,840.06x = 959,021.98 × 240,225.96
  4. Step 4: Simplify right side
    639,840.06x = 230,381,975,806.60
  5. Step 5: Solve for x
    x = 230,381,975,806.60/639,840.06
  6. Step 6: Final answer
    x = 360,061.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.