Home / 538,140.06-742,634.10-296,423.46

Finding the Fourth Proportional to 538,140.06, 742,634.10 and 296,423.46

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Solution

The fourth proportional to 538,140.06, 742,634.10 and 296,423.46 is: 409,064.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,140.06 : 742,634.10 = 296,423.46 : x
  2. Step 2: Convert to fraction form
    538,140.06/742,634.10 = 296,423.46/x
  3. Step 3: Cross multiply
    538,140.06x = 742,634.10 × 296,423.46
  4. Step 4: Simplify right side
    538,140.06x = 220,134,169,435.99
  5. Step 5: Solve for x
    x = 220,134,169,435.99/538,140.06
  6. Step 6: Final answer
    x = 409,064.82

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1.5x scale

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.