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Finding the Fourth Proportional to 605,316.72, 835,358.49 and 375,999.59

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Solution

The fourth proportional to 605,316.72, 835,358.49 and 375,999.59 is: 518,892.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,316.72 : 835,358.49 = 375,999.59 : x
  2. Step 2: Convert to fraction form
    605,316.72/835,358.49 = 375,999.59/x
  3. Step 3: Cross multiply
    605,316.72x = 835,358.49 × 375,999.59
  4. Step 4: Simplify right side
    605,316.72x = 314,094,449,743.02
  5. Step 5: Solve for x
    x = 314,094,449,743.02/605,316.72
  6. Step 6: Final answer
    x = 518,892.74

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1.5x scale

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.