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Finding the Fourth Proportional to 528,322.47, 728,536.86 and 452,093.82

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Solution

The fourth proportional to 528,322.47, 728,536.86 and 452,093.82 is: 623,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,322.47 : 728,536.86 = 452,093.82 : x
  2. Step 2: Convert to fraction form
    528,322.47/728,536.86 = 452,093.82/x
  3. Step 3: Cross multiply
    528,322.47x = 728,536.86 × 452,093.82
  4. Step 4: Simplify right side
    528,322.47x = 329,367,012,048.21
  5. Step 5: Solve for x
    x = 329,367,012,048.21/528,322.47
  6. Step 6: Final answer
    x = 623,420.41

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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.