Home / 1,428,315.69-2,142,486.09-363,358.89

Finding the Fourth Proportional to 1,428,315.69, 2,142,486.09 and 363,358.89

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Solution

The fourth proportional to 1,428,315.69, 2,142,486.09 and 363,358.89 is: 545,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,315.69 : 2,142,486.09 = 363,358.89 : x
  2. Step 2: Convert to fraction form
    1,428,315.69/2,142,486.09 = 363,358.89/x
  3. Step 3: Cross multiply
    1,428,315.69x = 2,142,486.09 × 363,358.89
  4. Step 4: Simplify right side
    1,428,315.69x = 778,491,367,502.84
  5. Step 5: Solve for x
    x = 778,491,367,502.84/1,428,315.69
  6. Step 6: Final answer
    x = 545,041.53

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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.