Home / 804,931.80-1,206,015.30-425,290.20

Finding the Fourth Proportional to 804,931.80, 1,206,015.30 and 425,290.20

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Solution

The fourth proportional to 804,931.80, 1,206,015.30 and 425,290.20 is: 637,204.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,931.80 : 1,206,015.30 = 425,290.20 : x
  2. Step 2: Convert to fraction form
    804,931.80/1,206,015.30 = 425,290.20/x
  3. Step 3: Cross multiply
    804,931.80x = 1,206,015.30 × 425,290.20
  4. Step 4: Simplify right side
    804,931.80x = 512,906,488,140.06
  5. Step 5: Solve for x
    x = 512,906,488,140.06/804,931.80
  6. Step 6: Final answer
    x = 637,204.90

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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.