Home / 748,416.10-1,123,465.45-299,453.70

Finding the Fourth Proportional to 748,416.10, 1,123,465.45 and 299,453.70

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Solution

The fourth proportional to 748,416.10, 1,123,465.45 and 299,453.70 is: 449,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,416.10 : 1,123,465.45 = 299,453.70 : x
  2. Step 2: Convert to fraction form
    748,416.10/1,123,465.45 = 299,453.70/x
  3. Step 3: Cross multiply
    748,416.10x = 1,123,465.45 × 299,453.70
  4. Step 4: Simplify right side
    748,416.10x = 336,425,885,824.67
  5. Step 5: Solve for x
    x = 336,425,885,824.67/748,416.10
  6. Step 6: Final answer
    x = 449,517.17

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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.