Home / 948,938.40-1,421,679.60-449,200.80

Finding the Fourth Proportional to 948,938.40, 1,421,679.60 and 449,200.80

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Solution

The fourth proportional to 948,938.40, 1,421,679.60 and 449,200.80 is: 672,983.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,938.40 : 1,421,679.60 = 449,200.80 : x
  2. Step 2: Convert to fraction form
    948,938.40/1,421,679.60 = 449,200.80/x
  3. Step 3: Cross multiply
    948,938.40x = 1,421,679.60 × 449,200.80
  4. Step 4: Simplify right side
    948,938.40x = 638,619,613,663.68
  5. Step 5: Solve for x
    x = 638,619,613,663.68/948,938.40
  6. Step 6: Final answer
    x = 672,983.21

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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.