Home / 1,228,031.28-1,841,405.40-386,357.04

Finding the Fourth Proportional to 1,228,031.28, 1,841,405.40 and 386,357.04

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Solution

The fourth proportional to 1,228,031.28, 1,841,405.40 and 386,357.04 is: 579,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,031.28 : 1,841,405.40 = 386,357.04 : x
  2. Step 2: Convert to fraction form
    1,228,031.28/1,841,405.40 = 386,357.04/x
  3. Step 3: Cross multiply
    1,228,031.28x = 1,841,405.40 × 386,357.04
  4. Step 4: Simplify right side
    1,228,031.28x = 711,439,939,784.02
  5. Step 5: Solve for x
    x = 711,439,939,784.02/1,228,031.28
  6. Step 6: Final answer
    x = 579,333.73

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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.