Home / 885,730.80-1,328,596.20-324,692.40

Finding the Fourth Proportional to 885,730.80, 1,328,596.20 and 324,692.40

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Solution

The fourth proportional to 885,730.80, 1,328,596.20 and 324,692.40 is: 487,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,730.80 : 1,328,596.20 = 324,692.40 : x
  2. Step 2: Convert to fraction form
    885,730.80/1,328,596.20 = 324,692.40/x
  3. Step 3: Cross multiply
    885,730.80x = 1,328,596.20 × 324,692.40
  4. Step 4: Simplify right side
    885,730.80x = 431,385,088,808.88
  5. Step 5: Solve for x
    x = 431,385,088,808.88/885,730.80
  6. Step 6: Final answer
    x = 487,038.60

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Similar ratio
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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.