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Finding the Fourth Proportional to 492,111.27, 679,113.60 and 265,756.77

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Solution

The fourth proportional to 492,111.27, 679,113.60 and 265,756.77 is: 366,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,111.27 : 679,113.60 = 265,756.77 : x
  2. Step 2: Convert to fraction form
    492,111.27/679,113.60 = 265,756.77/x
  3. Step 3: Cross multiply
    492,111.27x = 679,113.60 × 265,756.77
  4. Step 4: Simplify right side
    492,111.27x = 180,479,036,799.07
  5. Step 5: Solve for x
    x = 180,479,036,799.07/492,111.27
  6. Step 6: Final answer
    x = 366,744.37

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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.