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Finding the Fourth Proportional to 605,670.90, 907,342.02 and 338,621.52

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Solution

The fourth proportional to 605,670.90, 907,342.02 and 338,621.52 is: 507,281.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,670.90 : 907,342.02 = 338,621.52 : x
  2. Step 2: Convert to fraction form
    605,670.90/907,342.02 = 338,621.52/x
  3. Step 3: Cross multiply
    605,670.90x = 907,342.02 × 338,621.52
  4. Step 4: Simplify right side
    605,670.90x = 307,245,533,972.27
  5. Step 5: Solve for x
    x = 307,245,533,972.27/605,670.90
  6. Step 6: Final answer
    x = 507,281.32

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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.