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Finding the Fourth Proportional to 489,001.60, 675,101.44 and 374,068.16

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Solution

The fourth proportional to 489,001.60, 675,101.44 and 374,068.16 is: 516,427.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,001.60 : 675,101.44 = 374,068.16 : x
  2. Step 2: Convert to fraction form
    489,001.60/675,101.44 = 374,068.16/x
  3. Step 3: Cross multiply
    489,001.60x = 675,101.44 × 374,068.16
  4. Step 4: Simplify right side
    489,001.60x = 252,533,953,474.15
  5. Step 5: Solve for x
    x = 252,533,953,474.15/489,001.60
  6. Step 6: Final answer
    x = 516,427.66

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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.