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Finding the Fourth Proportional to 582,156.06, 803,390.99 and 320,519.34

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Solution

The fourth proportional to 582,156.06, 803,390.99 and 320,519.34 is: 442,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,156.06 : 803,390.99 = 320,519.34 : x
  2. Step 2: Convert to fraction form
    582,156.06/803,390.99 = 320,519.34/x
  3. Step 3: Cross multiply
    582,156.06x = 803,390.99 × 320,519.34
  4. Step 4: Simplify right side
    582,156.06x = 257,502,348,274.15
  5. Step 5: Solve for x
    x = 257,502,348,274.15/582,156.06
  6. Step 6: Final answer
    x = 442,325.29

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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.