Home / 813,087.30-1,220,748.14-413,996.24

Finding the Fourth Proportional to 813,087.30, 1,220,748.14 and 413,996.24

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Solution

The fourth proportional to 813,087.30, 1,220,748.14 and 413,996.24 is: 621,563.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,087.30 : 1,220,748.14 = 413,996.24 : x
  2. Step 2: Convert to fraction form
    813,087.30/1,220,748.14 = 413,996.24/x
  3. Step 3: Cross multiply
    813,087.30x = 1,220,748.14 × 413,996.24
  4. Step 4: Simplify right side
    813,087.30x = 505,385,139,946.99
  5. Step 5: Solve for x
    x = 505,385,139,946.99/813,087.30
  6. Step 6: Final answer
    x = 621,563.19

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Double scale
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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.