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Finding the Fourth Proportional to 438,077.80, 614,967.80 and 438,077.80

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Solution

The fourth proportional to 438,077.80, 614,967.80 and 438,077.80 is: 614,967.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,077.80 : 614,967.80 = 438,077.80 : x
  2. Step 2: Convert to fraction form
    438,077.80/614,967.80 = 438,077.80/x
  3. Step 3: Cross multiply
    438,077.80x = 614,967.80 × 438,077.80
  4. Step 4: Simplify right side
    438,077.80x = 269,403,740,894.84
  5. Step 5: Solve for x
    x = 269,403,740,894.84/438,077.80
  6. Step 6: Final answer
    x = 614,967.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.