Home / 767,009.68-1,058,509.40-427,480.36

Finding the Fourth Proportional to 767,009.68, 1,058,509.40 and 427,480.36

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Solution

The fourth proportional to 767,009.68, 1,058,509.40 and 427,480.36 is: 589,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,009.68 : 1,058,509.40 = 427,480.36 : x
  2. Step 2: Convert to fraction form
    767,009.68/1,058,509.40 = 427,480.36/x
  3. Step 3: Cross multiply
    767,009.68x = 1,058,509.40 × 427,480.36
  4. Step 4: Simplify right side
    767,009.68x = 452,491,979,375.38
  5. Step 5: Solve for x
    x = 452,491,979,375.38/767,009.68
  6. Step 6: Final answer
    x = 589,942.98

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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.