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Finding the Fourth Proportional to 605,087.10, 907,630.65 and 511,775.10

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Solution

The fourth proportional to 605,087.10, 907,630.65 and 511,775.10 is: 767,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,087.10 : 907,630.65 = 511,775.10 : x
  2. Step 2: Convert to fraction form
    605,087.10/907,630.65 = 511,775.10/x
  3. Step 3: Cross multiply
    605,087.10x = 907,630.65 × 511,775.10
  4. Step 4: Simplify right side
    605,087.10x = 464,502,766,666.82
  5. Step 5: Solve for x
    x = 464,502,766,666.82/605,087.10
  6. Step 6: Final answer
    x = 767,662.65

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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.