Home / 749,400.63-1,034,172.89-409,868.88

Finding the Fourth Proportional to 749,400.63, 1,034,172.89 and 409,868.88

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Solution

The fourth proportional to 749,400.63, 1,034,172.89 and 409,868.88 is: 565,619.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,400.63 : 1,034,172.89 = 409,868.88 : x
  2. Step 2: Convert to fraction form
    749,400.63/1,034,172.89 = 409,868.88/x
  3. Step 3: Cross multiply
    749,400.63x = 1,034,172.89 × 409,868.88
  4. Step 4: Simplify right side
    749,400.63x = 423,875,284,150.66
  5. Step 5: Solve for x
    x = 423,875,284,150.66/749,400.63
  6. Step 6: Final answer
    x = 565,619.07

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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.