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Finding the Fourth Proportional to 605,115.10, 907,672.65 and 511,803.10

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Solution

The fourth proportional to 605,115.10, 907,672.65 and 511,803.10 is: 767,704.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,115.10 : 907,672.65 = 511,803.10 : x
  2. Step 2: Convert to fraction form
    605,115.10/907,672.65 = 511,803.10/x
  3. Step 3: Cross multiply
    605,115.10x = 907,672.65 × 511,803.10
  4. Step 4: Simplify right side
    605,115.10x = 464,549,676,055.22
  5. Step 5: Solve for x
    x = 464,549,676,055.22/605,115.10
  6. Step 6: Final answer
    x = 767,704.65

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Similar ratio
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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.