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Finding the Fourth Proportional to 486,046.58, 670,728.60 and 265,275.42

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Solution

The fourth proportional to 486,046.58, 670,728.60 and 265,275.42 is: 366,071.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,046.58 : 670,728.60 = 265,275.42 : x
  2. Step 2: Convert to fraction form
    486,046.58/670,728.60 = 265,275.42/x
  3. Step 3: Cross multiply
    486,046.58x = 670,728.60 × 265,275.42
  4. Step 4: Simplify right side
    486,046.58x = 177,927,811,071.01
  5. Step 5: Solve for x
    x = 177,927,811,071.01/486,046.58
  6. Step 6: Final answer
    x = 366,071.52

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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.