Home / 456,469.20-684,703.80-385,610.40

Finding the Fourth Proportional to 456,469.20, 684,703.80 and 385,610.40

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Solution

The fourth proportional to 456,469.20, 684,703.80 and 385,610.40 is: 578,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,469.20 : 684,703.80 = 385,610.40 : x
  2. Step 2: Convert to fraction form
    456,469.20/684,703.80 = 385,610.40/x
  3. Step 3: Cross multiply
    456,469.20x = 684,703.80 × 385,610.40
  4. Step 4: Simplify right side
    456,469.20x = 264,028,906,199.52
  5. Step 5: Solve for x
    x = 264,028,906,199.52/456,469.20
  6. Step 6: Final answer
    x = 578,415.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.