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Finding the Fourth Proportional to 453,903.40, 680,855.10 and 446,030.20

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Solution

The fourth proportional to 453,903.40, 680,855.10 and 446,030.20 is: 669,045.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,903.40 : 680,855.10 = 446,030.20 : x
  2. Step 2: Convert to fraction form
    453,903.40/680,855.10 = 446,030.20/x
  3. Step 3: Cross multiply
    453,903.40x = 680,855.10 × 446,030.20
  4. Step 4: Simplify right side
    453,903.40x = 303,681,936,424.02
  5. Step 5: Solve for x
    x = 303,681,936,424.02/453,903.40
  6. Step 6: Final answer
    x = 669,045.30

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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.