Home / 905,983.90-1,358,976.10-266,287.74

Finding the Fourth Proportional to 905,983.90, 1,358,976.10 and 266,287.74

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Solution

The fourth proportional to 905,983.90, 1,358,976.10 and 266,287.74 is: 399,431.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,983.90 : 1,358,976.10 = 266,287.74 : x
  2. Step 2: Convert to fraction form
    905,983.90/1,358,976.10 = 266,287.74/x
  3. Step 3: Cross multiply
    905,983.90x = 1,358,976.10 × 266,287.74
  4. Step 4: Simplify right side
    905,983.90x = 361,878,674,383.01
  5. Step 5: Solve for x
    x = 361,878,674,383.01/905,983.90
  6. Step 6: Final answer
    x = 399,431.68

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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.