Home / 931,277.80-1,396,916.70-266,429.80

Finding the Fourth Proportional to 931,277.80, 1,396,916.70 and 266,429.80

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Solution

The fourth proportional to 931,277.80, 1,396,916.70 and 266,429.80 is: 399,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,277.80 : 1,396,916.70 = 266,429.80 : x
  2. Step 2: Convert to fraction form
    931,277.80/1,396,916.70 = 266,429.80/x
  3. Step 3: Cross multiply
    931,277.80x = 1,396,916.70 × 266,429.80
  4. Step 4: Simplify right side
    931,277.80x = 372,180,236,997.66
  5. Step 5: Solve for x
    x = 372,180,236,997.66/931,277.80
  6. Step 6: Final answer
    x = 399,644.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.