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Finding the Fourth Proportional to 605,132.60, 907,698.90 and 511,820.60

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Solution

The fourth proportional to 605,132.60, 907,698.90 and 511,820.60 is: 767,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,132.60 : 907,698.90 = 511,820.60 : x
  2. Step 2: Convert to fraction form
    605,132.60/907,698.90 = 511,820.60/x
  3. Step 3: Cross multiply
    605,132.60x = 907,698.90 × 511,820.60
  4. Step 4: Simplify right side
    605,132.60x = 464,578,995,617.34
  5. Step 5: Solve for x
    x = 464,578,995,617.34/605,132.60
  6. Step 6: Final answer
    x = 767,730.90

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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.