Home / 538,350.40-742,913.76-296,655.28

Finding the Fourth Proportional to 538,350.40, 742,913.76 and 296,655.28

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Solution

The fourth proportional to 538,350.40, 742,913.76 and 296,655.28 is: 409,378.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,350.40 : 742,913.76 = 296,655.28 : x
  2. Step 2: Convert to fraction form
    538,350.40/742,913.76 = 296,655.28/x
  3. Step 3: Cross multiply
    538,350.40x = 742,913.76 × 296,655.28
  4. Step 4: Simplify right side
    538,350.40x = 220,389,289,488.65
  5. Step 5: Solve for x
    x = 220,389,289,488.65/538,350.40
  6. Step 6: Final answer
    x = 409,378.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.