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Finding the Fourth Proportional to 582,420.09, 803,851.20 and 353,102.37

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Solution

The fourth proportional to 582,420.09, 803,851.20 and 353,102.37 is: 487,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,420.09 : 803,851.20 = 353,102.37 : x
  2. Step 2: Convert to fraction form
    582,420.09/803,851.20 = 353,102.37/x
  3. Step 3: Cross multiply
    582,420.09x = 803,851.20 × 353,102.37
  4. Step 4: Simplify right side
    582,420.09x = 283,841,763,847.34
  5. Step 5: Solve for x
    x = 283,841,763,847.34/582,420.09
  6. Step 6: Final answer
    x = 487,348.85

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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.