Home / 804,515.10-1,205,023.05-488,420.70

Finding the Fourth Proportional to 804,515.10, 1,205,023.05 and 488,420.70

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Solution

The fourth proportional to 804,515.10, 1,205,023.05 and 488,420.70 is: 731,568.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,515.10 : 1,205,023.05 = 488,420.70 : x
  2. Step 2: Convert to fraction form
    804,515.10/1,205,023.05 = 488,420.70/x
  3. Step 3: Cross multiply
    804,515.10x = 1,205,023.05 × 488,420.70
  4. Step 4: Simplify right side
    804,515.10x = 588,558,201,597.14
  5. Step 5: Solve for x
    x = 588,558,201,597.14/804,515.10
  6. Step 6: Final answer
    x = 731,568.87

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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.