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Finding the Fourth Proportional to 536,712.48, 740,647.56 and 307,262.16

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Solution

The fourth proportional to 536,712.48, 740,647.56 and 307,262.16 is: 424,012.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,712.48 : 740,647.56 = 307,262.16 : x
  2. Step 2: Convert to fraction form
    536,712.48/740,647.56 = 307,262.16/x
  3. Step 3: Cross multiply
    536,712.48x = 740,647.56 × 307,262.16
  4. Step 4: Simplify right side
    536,712.48x = 227,572,968,000.87
  5. Step 5: Solve for x
    x = 227,572,968,000.87/536,712.48
  6. Step 6: Final answer
    x = 424,012.81

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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.