Home / 419,896.04-630,208.02-220,357.40

Finding the Fourth Proportional to 419,896.04, 630,208.02 and 220,357.40

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Solution

The fourth proportional to 419,896.04, 630,208.02 and 220,357.40 is: 330,727.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,896.04 : 630,208.02 = 220,357.40 : x
  2. Step 2: Convert to fraction form
    419,896.04/630,208.02 = 220,357.40/x
  3. Step 3: Cross multiply
    419,896.04x = 630,208.02 × 220,357.40
  4. Step 4: Simplify right side
    419,896.04x = 138,871,000,746.35
  5. Step 5: Solve for x
    x = 138,871,000,746.35/419,896.04
  6. Step 6: Final answer
    x = 330,727.10

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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.