Home / 1,403,814.28-2,105,638.30-392,913.83

Finding the Fourth Proportional to 1,403,814.28, 2,105,638.30 and 392,913.83

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Solution

The fourth proportional to 1,403,814.28, 2,105,638.30 and 392,913.83 is: 589,347.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,814.28 : 2,105,638.30 = 392,913.83 : x
  2. Step 2: Convert to fraction form
    1,403,814.28/2,105,638.30 = 392,913.83/x
  3. Step 3: Cross multiply
    1,403,814.28x = 2,105,638.30 × 392,913.83
  4. Step 4: Simplify right side
    1,403,814.28x = 827,334,409,047.69
  5. Step 5: Solve for x
    x = 827,334,409,047.69/1,403,814.28
  6. Step 6: Final answer
    x = 589,347.48

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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.