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Finding the Fourth Proportional to 529,762.39, 731,051.94 and 288,045.16

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Solution

The fourth proportional to 529,762.39, 731,051.94 and 288,045.16 is: 397,491.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,762.39 : 731,051.94 = 288,045.16 : x
  2. Step 2: Convert to fraction form
    529,762.39/731,051.94 = 288,045.16/x
  3. Step 3: Cross multiply
    529,762.39x = 731,051.94 × 288,045.16
  4. Step 4: Simplify right side
    529,762.39x = 210,575,973,025.61
  5. Step 5: Solve for x
    x = 210,575,973,025.61/529,762.39
  6. Step 6: Final answer
    x = 397,491.36

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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.