Home / 759,739.92-1,048,468.50-420,210.60

Finding the Fourth Proportional to 759,739.92, 1,048,468.50 and 420,210.60

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Solution

The fourth proportional to 759,739.92, 1,048,468.50 and 420,210.60 is: 579,905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,739.92 : 1,048,468.50 = 420,210.60 : x
  2. Step 2: Convert to fraction form
    759,739.92/1,048,468.50 = 420,210.60/x
  3. Step 3: Cross multiply
    759,739.92x = 1,048,468.50 × 420,210.60
  4. Step 4: Simplify right side
    759,739.92x = 440,577,577,466.10
  5. Step 5: Solve for x
    x = 440,577,577,466.10/759,739.92
  6. Step 6: Final answer
    x = 579,905.79

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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.