Home / 841,118.72-1,160,728.97-478,534.80

Finding the Fourth Proportional to 841,118.72, 1,160,728.97 and 478,534.80

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Solution

The fourth proportional to 841,118.72, 1,160,728.97 and 478,534.80 is: 660,369.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,118.72 : 1,160,728.97 = 478,534.80 : x
  2. Step 2: Convert to fraction form
    841,118.72/1,160,728.97 = 478,534.80/x
  3. Step 3: Cross multiply
    841,118.72x = 1,160,728.97 × 478,534.80
  4. Step 4: Simplify right side
    841,118.72x = 555,449,207,287.00
  5. Step 5: Solve for x
    x = 555,449,207,287.00/841,118.72
  6. Step 6: Final answer
    x = 660,369.57

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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.