Home / 755,039.08-1,041,719.36-428,298.24

Finding the Fourth Proportional to 755,039.08, 1,041,719.36 and 428,298.24

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Solution

The fourth proportional to 755,039.08, 1,041,719.36 and 428,298.24 is: 590,918.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,039.08 : 1,041,719.36 = 428,298.24 : x
  2. Step 2: Convert to fraction form
    755,039.08/1,041,719.36 = 428,298.24/x
  3. Step 3: Cross multiply
    755,039.08x = 1,041,719.36 × 428,298.24
  4. Step 4: Simplify right side
    755,039.08x = 446,166,568,461.93
  5. Step 5: Solve for x
    x = 446,166,568,461.93/755,039.08
  6. Step 6: Final answer
    x = 590,918.51

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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.