Home / 760,103.16-1,048,928.52-420,571.40

Finding the Fourth Proportional to 760,103.16, 1,048,928.52 and 420,571.40

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Solution

The fourth proportional to 760,103.16, 1,048,928.52 and 420,571.40 is: 580,380.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,103.16 : 1,048,928.52 = 420,571.40 : x
  2. Step 2: Convert to fraction form
    760,103.16/1,048,928.52 = 420,571.40/x
  3. Step 3: Cross multiply
    760,103.16x = 1,048,928.52 × 420,571.40
  4. Step 4: Simplify right side
    760,103.16x = 441,149,336,156.33
  5. Step 5: Solve for x
    x = 441,149,336,156.33/760,103.16
  6. Step 6: Final answer
    x = 580,380.87

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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.