Home / 759,995.60-1,048,786.15-420,466.28

Finding the Fourth Proportional to 759,995.60, 1,048,786.15 and 420,466.28

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Solution

The fourth proportional to 759,995.60, 1,048,786.15 and 420,466.28 is: 580,239.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,995.60 : 1,048,786.15 = 420,466.28 : x
  2. Step 2: Convert to fraction form
    759,995.60/1,048,786.15 = 420,466.28/x
  3. Step 3: Cross multiply
    759,995.60x = 1,048,786.15 × 420,466.28
  4. Step 4: Simplify right side
    759,995.60x = 440,979,211,006.02
  5. Step 5: Solve for x
    x = 440,979,211,006.02/759,995.60
  6. Step 6: Final answer
    x = 580,239.16

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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.