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Finding the Fourth Proportional to 534,885.60, 738,045.36 and 343,855.20

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Solution

The fourth proportional to 534,885.60, 738,045.36 and 343,855.20 is: 474,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,885.60 : 738,045.36 = 343,855.20 : x
  2. Step 2: Convert to fraction form
    534,885.60/738,045.36 = 343,855.20/x
  3. Step 3: Cross multiply
    534,885.60x = 738,045.36 × 343,855.20
  4. Step 4: Simplify right side
    534,885.60x = 253,780,734,871.87
  5. Step 5: Solve for x
    x = 253,780,734,871.87/534,885.60
  6. Step 6: Final answer
    x = 474,457.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.