Home / 726,758.10-1,090,007.55-460,041.30

Finding the Fourth Proportional to 726,758.10, 1,090,007.55 and 460,041.30

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Solution

The fourth proportional to 726,758.10, 1,090,007.55 and 460,041.30 is: 689,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,758.10 : 1,090,007.55 = 460,041.30 : x
  2. Step 2: Convert to fraction form
    726,758.10/1,090,007.55 = 460,041.30/x
  3. Step 3: Cross multiply
    726,758.10x = 1,090,007.55 × 460,041.30
  4. Step 4: Simplify right side
    726,758.10x = 501,448,490,311.82
  5. Step 5: Solve for x
    x = 501,448,490,311.82/726,758.10
  6. Step 6: Final answer
    x = 689,979.91

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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.