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Finding the Fourth Proportional to 582,512.34, 803,452.93 and 388,822.39

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Solution

The fourth proportional to 582,512.34, 803,452.93 and 388,822.39 is: 536,298.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,512.34 : 803,452.93 = 388,822.39 : x
  2. Step 2: Convert to fraction form
    582,512.34/803,452.93 = 388,822.39/x
  3. Step 3: Cross multiply
    582,512.34x = 803,452.93 × 388,822.39
  4. Step 4: Simplify right side
    582,512.34x = 312,400,488,495.10
  5. Step 5: Solve for x
    x = 312,400,488,495.10/582,512.34
  6. Step 6: Final answer
    x = 536,298.49

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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.