Home / 804,928.20-1,208,169.90-490,000.20

Finding the Fourth Proportional to 804,928.20, 1,208,169.90 and 490,000.20

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Solution

The fourth proportional to 804,928.20, 1,208,169.90 and 490,000.20 is: 735,473.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,928.20 : 1,208,169.90 = 490,000.20 : x
  2. Step 2: Convert to fraction form
    804,928.20/1,208,169.90 = 490,000.20/x
  3. Step 3: Cross multiply
    804,928.20x = 1,208,169.90 × 490,000.20
  4. Step 4: Simplify right side
    804,928.20x = 592,003,492,633.98
  5. Step 5: Solve for x
    x = 592,003,492,633.98/804,928.20
  6. Step 6: Final answer
    x = 735,473.66

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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.