Home / 1,261,248-1,740,558.96-688,324.80

Finding the Fourth Proportional to 1,261,248, 1,740,558.96 and 688,324.80

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Solution

The fourth proportional to 1,261,248, 1,740,558.96 and 688,324.80 is: 949,908.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,248 : 1,740,558.96 = 688,324.80 : x
  2. Step 2: Convert to fraction form
    1,261,248/1,740,558.96 = 688,324.80/x
  3. Step 3: Cross multiply
    1,261,248x = 1,740,558.96 × 688,324.80
  4. Step 4: Simplify right side
    1,261,248x = 1,198,069,898,030.21
  5. Step 5: Solve for x
    x = 1,198,069,898,030.21/1,261,248
  6. Step 6: Final answer
    x = 949,908.26

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Double scale
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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.