Home / 780,670.22-1,076,909.34-474,840.14

Finding the Fourth Proportional to 780,670.22, 1,076,909.34 and 474,840.14

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Solution

The fourth proportional to 780,670.22, 1,076,909.34 and 474,840.14 is: 655,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,670.22 : 1,076,909.34 = 474,840.14 : x
  2. Step 2: Convert to fraction form
    780,670.22/1,076,909.34 = 474,840.14/x
  3. Step 3: Cross multiply
    780,670.22x = 1,076,909.34 × 474,840.14
  4. Step 4: Simplify right side
    780,670.22x = 511,359,780,861.29
  5. Step 5: Solve for x
    x = 511,359,780,861.29/780,670.22
  6. Step 6: Final answer
    x = 655,026.63

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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.