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Finding the Fourth Proportional to 479,990.71, 662,374.47 and 265,126.15

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Solution

The fourth proportional to 479,990.71, 662,374.47 and 265,126.15 is: 365,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,990.71 : 662,374.47 = 265,126.15 : x
  2. Step 2: Convert to fraction form
    479,990.71/662,374.47 = 265,126.15/x
  3. Step 3: Cross multiply
    479,990.71x = 662,374.47 × 265,126.15
  4. Step 4: Simplify right side
    479,990.71x = 175,612,793,089.39
  5. Step 5: Solve for x
    x = 175,612,793,089.39/479,990.71
  6. Step 6: Final answer
    x = 365,867.07

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1.5x scale

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.