Home / 748,903.40-1,123,359.90-299,661.80

Finding the Fourth Proportional to 748,903.40, 1,123,359.90 and 299,661.80

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Solution

The fourth proportional to 748,903.40, 1,123,359.90 and 299,661.80 is: 449,494.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,903.40 : 1,123,359.90 = 299,661.80 : x
  2. Step 2: Convert to fraction form
    748,903.40/1,123,359.90 = 299,661.80/x
  3. Step 3: Cross multiply
    748,903.40x = 1,123,359.90 × 299,661.80
  4. Step 4: Simplify right side
    748,903.40x = 336,628,049,681.82
  5. Step 5: Solve for x
    x = 336,628,049,681.82/748,903.40
  6. Step 6: Final answer
    x = 449,494.62

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1.5x scale

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.