Home / 1,123,509.80-1,685,264.70-449,695.10

Finding the Fourth Proportional to 1,123,509.80, 1,685,264.70 and 449,695.10

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Solution

The fourth proportional to 1,123,509.80, 1,685,264.70 and 449,695.10 is: 674,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,509.80 : 1,685,264.70 = 449,695.10 : x
  2. Step 2: Convert to fraction form
    1,123,509.80/1,685,264.70 = 449,695.10/x
  3. Step 3: Cross multiply
    1,123,509.80x = 1,685,264.70 × 449,695.10
  4. Step 4: Simplify right side
    1,123,509.80x = 757,855,277,792.97
  5. Step 5: Solve for x
    x = 757,855,277,792.97/1,123,509.80
  6. Step 6: Final answer
    x = 674,542.65

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Double scale
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Similar ratio
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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.